Radioactivity is generally not found in a)Light nuclei b)Stable nuclei c)Heavy nuclei d)Nuclei of intermediate mass

Radioactivity is generally not found in a)Light nuclei b)Stable nuclei c)Heavy nuclei d)Nuclei of intermediate mass
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Radioactivity is generally not found in a)Light nuclei b)Stable nuclei c)Heavy nuclei d)Nuclei of ... C. heavy nuclei D. nuclei of intermediate mass
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(3) two light nuclei combine to form a heavy nucleus Explanation: Nuclear fusion is the process of making a single heavy nucleus (part of an atom) from two lighter nuclei. The difference in mass between the products and reactants is manifested as the release of large amounts of energy. Fusion is the process that powers active or "main sequence" stars, or other high magnitude stars.

Description : (3) two light nuclei combine to form a heavy nucleus Explanation: Nuclear fusion is the process of making a single heavy nucleus (part of an atom) from two lighter nuclei. The difference in mass ... . Fusion is the process that powers active or "main sequence" stars, or other high magnitude stars.

Last Answer : Helium is added to the oxygen supply of deep sea divers because it is - (1) less poisonous than nitrogen (2) (2) Lighter than nitrogen (3) Readily miscible with oxygen (4) less soluble in blood than nitrogen at high pressure

The nuclei of heavy atoms generally contain: w) more electrons than neutrons x) more protons than electrons y) more neutrons than electrons z) more orbitals than electrons

Description : The nuclei of heavy atoms generally contain: w) more electrons than neutrons x) more protons than electrons y) more neutrons than electrons z) more orbitals than electrons

Last Answer : ANSWER: Y -- MORE NEUTRONS THAN ELECTRONS

The nuclear reaction in which a heavy nucleus splits into two nuclei of nearly equal mass is called - (1) Nuclear fusion (2) Nuclear fission (3) Nuclear reaction (4) Fast breeding

Description : The nuclear reaction in which a heavy nucleus splits into two nuclei of nearly equal mass is called - (1) Nuclear fusion (2) Nuclear fission (3) Nuclear reaction (4) Fast breeding

Last Answer : (2) Nuclear fission Explanation: Nuclear fission is a process used to create energy. It is when an atom splits apart into smaller atoms. The process gives off a lot of energy, and is used in nuclear weapons and nuclear reactors.

The nuclear reaction in which a heavy nucleus splits into two nuclei of nearly equal mass is called - (1) Nuclear fusion (2) Nuclear fission (3) Nuclear reaction (4) Fast breeding

Description : The nuclear reaction in which a heavy nucleus splits into two nuclei of nearly equal mass is called - (1) Nuclear fusion (2) Nuclear fission (3) Nuclear reaction (4) Fast breeding

Last Answer : (2) Nuclear fission Explanation: Nuclear fission is a process used to create energy. It is when an atom splits apart into smaller atoms. The process gives off a lot of energy, and is used in nuclear weapons and nuclear reactors.

Which one of the following takes place during a nuclear fusion? (1) a heavy nucleus bombarded by neutrons breaks up (2) a heavy nucleus breaks up spontaneously (3) two light nuclei combine to form a heavy nucleus (4) a light nucleus breaks up spontaneously

Description : Which one of the following takes place during a nuclear fusion? (1) a heavy nucleus bombarded by neutrons breaks up (2) a heavy nucleus breaks up spontaneously (3) two light nuclei combine to form a heavy nucleus (4) a light nucleus breaks up spontaneously

Last Answer : two light nuclei combine to form a heavy nucleus

The `I-128` has no therapeutic value because a.)It is poisonous b.)It is very stable c.)It decays quickly and loses radioactivity. d.)It is not radioa

Description : The `I-128` has no therapeutic value because a.)It is poisonous b.)It is very stable c.)It decays quickly and loses radioactivity. d.)It is not radioa

Last Answer : The `I-128` has no therapeutic value because a.)It is poisonous b.)It is very stable c.)It ... is poisonous C. it is radioactive D. none of these

Radioactivity is due to a) Stable electronic configuration b) Unstable electronic configuration c) Stable nucleus d) Unstable nucleus

Description : Radioactivity is due to a) Stable electronic configuration b) Unstable electronic configuration c) Stable nucleus d) Unstable nucleus

Last Answer : Radioactivity is due to a) Stable electronic configuration b) Unstable electronic configuration c) ... C. stable nucleus D. unstable nucleus

Which of the following nuclei would be the most stable A. 10 protons , 14 neutrons B. 10 protons, 15 neutrons C. 10 protons, 13 neutrons D. 10 protons, 12 neutrons.?

Description : Which of the following nuclei would be the most stable A. 10 protons , 14 neutrons B. 10 protons, 15 neutrons C. 10 protons, 13 neutrons D. 10 protons, 12 neutrons.?

Last Answer : (Explanation): remember that if an atom has less than 20 protons, the closer the number of neutrons and protons are, the more stable it is. Since 10 is closest to 12 out of these options, D is the correct answer.

If a U-238 nucleus splits into two identical parts, the two nuclei so produced will be _____. A. Radioactive B. Stable C. Isotopes D. Isobars

Description : If a U-238 nucleus splits into two identical parts, the two nuclei so produced will be _____. A. Radioactive B. Stable C. Isotopes D. Isobars

Last Answer : ANSWER: A

Nuclear radiation is emitted by those elements whose: A. molecules are stable B. molecules are unstable C. nuclei are stable D. nuclei are unstable (Answer)

Description : Nuclear radiation is emitted by those elements whose: A. molecules are stable B. molecules are unstable C. nuclei are stable D. nuclei are unstable (Answer)

Last Answer : D. nuclei are unstable (Answer)

In a refinery petroleum crude is fractionated into gas fraction, light ends, intermediate distillates, heavy distillates, residues and by products. The group of products including gas oil, diesel oil and heavy fuel oil belongs to the fraction (A) Heavy distillates (B) Intermediate distillates (C) Light ends (D) Residues

Description : In a refinery petroleum crude is fractionated into gas fraction, light ends, intermediate distillates, heavy distillates, residues and by products. The group of products including gas oil, diesel oil and ... the fraction (A) Heavy distillates (B) Intermediate distillates (C) Light ends (D) Residues

Last Answer : (A) Heavy distillates

A heavy nucleus breaking up into smaller nuclei of almost equal size is called?

Description : A heavy nucleus breaking up into smaller nuclei of almost equal size is called?

Last Answer : Fission

The process of splitting a heavy nucleus into two medium sized nuclei along with release of neutrons is called

Description : The process of splitting a heavy nucleus into two medium sized nuclei along with release of neutrons is called

Last Answer : nuclear fission.

In a fission nuclear reaction , a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear reaction is called ? A. Chemical Reaction B. Nuclear reaction C. Fission nuclear reaction D. Fusion nuclear reaction (Answer) E. None of these

Description : In a fission nuclear reaction , a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear ... reaction C. Fission nuclear reaction D. Fusion nuclear reaction (Answer) E. None of these

Last Answer : D. Fusion nuclear reaction (Answer)

Electron-withdrawing groups are meta directors because : (a) the carbonium ion intermediate has a negative charge on the meta position. (b) the more stable resonance hybrid occurs with meta attachment of the electrophile. (c) the less stable resonance hybrid occurs with meta attachment of the electrophile. (d) the carbonium ion intermediate has a positive charge on the meta position

Description : Electron-withdrawing groups are meta directors because : (a) the carbonium ion intermediate has a negative charge on the meta position. (b) the more stable resonance hybrid occurs with meta ... the electrophile. (d) the carbonium ion intermediate has a positive charge on the meta position

Last Answer : the more stable resonance hybrid occurs with meta attachment of the electrophile.

Intermediate catch water drains are provided only, if (A) Catchment area of the watershed above road is large (B) Intensity of rainfall is heavy (C) Single catch water drain is inadequate (D) All the above

Description : Intermediate catch water drains are provided only, if (A) Catchment area of the watershed above road is large (B) Intensity of rainfall is heavy (C) Single catch water drain is inadequate (D) All the above

Last Answer : Answer: Option D

What about the nuclei whose protons are not equal but their mass is equal ?

Description : What about the nuclei whose protons are not equal but their mass is equal ?

Last Answer : All atoms that have the same mass but different atomic numbers are called isobars. E.g. 4018Ar and 4019Ca ; Here both argon and calcium have a mass of 40 but the atomic number is 18 and 19 , respectively.

What is the number of nuclei with equal number of neutrons but not equal mass ?

Description : What is the number of nuclei with equal number of neutrons but not equal mass ?

Last Answer : : Isotones are called nuclei which have equal number of neutrons but not equal mass.

The sum of masses of two nuclei produced in nuclear fission compared to the mass of original nucleus is (A) Less (B) More (C) Same (D) Much more

Description : The sum of masses of two nuclei produced in nuclear fission compared to the mass of original nucleus is (A) Less (B) More (C) Same (D) Much more

Last Answer : (A) Less

In Rutherford's experiment involving the deflection of alpha particles by atomic nuclei, the fact that some of the alpha particles bombarding the thin gold foil were back-scattered, led to one of the following conclusions. It was concluded that: w) the charge of an electron is negative x) the nucleus of a gold atom carries all its charge y) most of the mass of a gold atom is in its nucleus z) the nucleus of a gold atom occupies nearly the entire space of the atom

Description : In Rutherford's experiment involving the deflection of alpha particles by atomic nuclei, the fact that some of the alpha particles bombarding the thin gold foil were back-scattered, led to one of the ... its nucleus z) the nucleus of a gold atom occupies nearly the entire space of the atom

Last Answer : ANSWER: Y -- MOST OF THE MASS OF A GOLD ATOM IS IN ITS NUCLEUS

Power stations are generally treated as (A) Light construction (B) Heavy construction (C) Industrial construction (D) Electrical construction

Description : Power stations are generally treated as (A) Light construction (B) Heavy construction (C) Industrial construction (D) Electrical construction

Last Answer : (C) Industrial construction

The cells of the quiescent centre are characterised by (a) having dense cytoplasm and prominent nuclei (b) having light cytoplasm and small nuclei (c) dividing regularly to add to the corpus (d) dividing regularly to add to tunica.

Description : The cells of the quiescent centre are characterised by (a) having dense cytoplasm and prominent nuclei (b) having light cytoplasm and small nuclei (c) dividing regularly to add to the corpus (d) dividing regularly to add to tunica.

Last Answer : (b) having light cytoplasm and small nuclei

The cells of the quiescent centre are characterised by (a) having dense cytoplasm and prominent nuclei (b) having light cytoplasm and small nuclei (c) dividing regularly to add to the corpus (d) dividing regularly to add to tunica

Description : The cells of the quiescent centre are characterised by (a) having dense cytoplasm and prominent nuclei (b) having light cytoplasm and small nuclei (c) dividing regularly to add to the corpus (d) dividing regularly to add to tunica

Last Answer : b) having light cytoplasm and small nuclei

What are Atoms that vary in the number of neutrons found in their nuclei called?

Description : What are Atoms that vary in the number of neutrons found in their nuclei called?

Last Answer : You can have the atoms with same number of protons and differentnumber of neutrons. Such atoms are called as isotopes.

Ribosomes similar to those of bacteria found in (A) Plant nuclei (B) Cardiac muscle cytoplasm (C) Liver endoplasmic reticulum (D) Neuronal cytoplasm

Description : Ribosomes similar to those of bacteria found in (A) Plant nuclei (B) Cardiac muscle cytoplasm (C) Liver endoplasmic reticulum (D) Neuronal cytoplasm

Last Answer : Answer : A

The following are true : a. the HLA proteins are found within the cytoplasm of the cells b. HLA class I antigens are expressed on all cells with nuclei c. HLA class II antigens presents the virus infected cells to cytotoxic T lymphocytes d. HLA genes are found on chromosome 6 e. HLA tissue typing is carried out in all forms of transplantation to prevent rejection

Description : The following are true : a. the HLA proteins are found within the cytoplasm of the cells b. HLA class I antigens are expressed on all cells with nuclei c. HLA class II antigens presents ... on chromosome 6 e. HLA tissue typing is carried out in all forms of transplantation to prevent rejection

Last Answer : HLA class I antigens are expressed on all cells with nuclei

Blood platelets are: a) cytoplasmic fragments b) free nuclei c) a kind of red cell d) found only during clot formation

Description : Blood platelets are: a) cytoplasmic fragments b) free nuclei c) a kind of red cell d) found only during clot formation

Last Answer : ANSWER: A -- Cytoplasmic fragments

In a spring mass system of mass m and stiffness k, the end of the spring are securely fixed and mass is attached to intermediate point of spring. The natural frequency of longitudinal vibration of the system A) Is maximum when mass is attached to mid point of the spring B) Is minimum when mass is attached to mid point of the spring C) Decreases as the distance from the top end where mass is attached decreases D) Decreases as the distance from the bottom end where mass is attached decreases

Description : In a spring mass system of mass m and stiffness k, the end of the spring are securely fixed and mass is attached to intermediate point of spring. The natural frequency of longitudinal ... is attached decreases D) Decreases as the distance from the bottom end where mass is attached decreases

Last Answer : B) Is minimum when mass is attached to mid point of the spring

Heavy water plants are generally located near (a) Major irrigation projects (b) Hydroelectric projects (c) Fertilizer plants (d) Nuclear power plants

Description : Heavy water plants are generally located near (a) Major irrigation projects (b) Hydroelectric projects (c) Fertilizer plants (d) Nuclear power plants

Last Answer : Ans: (c)

People consuming alcohol in heavy quantities generally die of – (1) liver or stomach cancer (2) weakening of heart muscles leading to cardiac arrest (3) blood cancer (4) Cirrhosis

Description : People consuming alcohol in heavy quantities generally die of – (1) liver or stomach cancer (2) weakening of heart muscles leading to cardiac arrest (3) blood cancer (4) Cirrhosis

Last Answer : (4) Cirrhosis Explanation: Cirrhosis is a condition in which the liver does not function properly due to longterm damage. This damage is characterized by the replacement of normal liver tissue by scar tissue.

Heavy alcohol consuming people generally die of (1) blood cancer (2) cirrhosis (3) liver or stomach cancer (4) weakening of heart muscles leading to cardiac arrest

Description : Heavy alcohol consuming people generally die of (1) blood cancer (2) cirrhosis (3) liver or stomach cancer (4) weakening of heart muscles leading to cardiac arrest

Last Answer : (2) cirrhosis Explanation: Cirrhosis is scarring of the liver and poor liver function. It is the final phase of chronic liver disease which may result from a history of excess drinking habits. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease.

To support a heavy structure in sandy soil, the type of foundation generally used, is (A) Combined footing (B) Raft footing (C) Pier footing (D) Strap footing

Description : To support a heavy structure in sandy soil, the type of foundation generally used, is (A) Combined footing (B) Raft footing (C) Pier footing (D) Strap footing

Last Answer : Answer: Option C

Which one of the following activities is not correct as applicable to brick corbels? (A) The maximum projection of the corbel should not be more than the thickness of the wall (B) The maximum projection of each corbel course should be limited to a quarter brick at a time (C) The discontinuous corbels are used to carry heavy concentrated loads (D) Stretcher bond is generally used for the construction of brick corbel

Description : Which one of the following activities is not correct as applicable to brick corbels? (A) The maximum projection of the corbel should not be more than the thickness of the wall (B) The ... to carry heavy concentrated loads (D) Stretcher bond is generally used for the construction of brick corbel

Last Answer : Answer: Option D

Heavy alcohol consuming people generally die of (1) blood cancer (2) cirrhosis (3) liver or stomach cancer (4) weakening of heart muscles leading to cardiac arrest

Description : Heavy alcohol consuming people generally die of (1) blood cancer (2) cirrhosis (3) liver or stomach cancer (4) weakening of heart muscles leading to cardiac arrest

Last Answer : cirrhosis

Evolutionarily protochordates may be intermediate animals between invertebrates and vertebrates. Imagine a scientist is testing the hypothesis that vertebrates evolved from echinoderms. Having as research object a newly found protochordate species, what is an example of a discovery that would weaken the hypothesis? What is an example of a discovery that would strengthen it?

Description : Evolutionarily protochordates may be intermediate animals between invertebrates and vertebrates. Imagine a scientist is testing the hypothesis that vertebrates evolved from echinoderms. Having as research object a newly ... the hypothesis? What is an example of a discovery that would strengthen it?

Last Answer : Hypothesis to be tested: Vertebrates evolved from echinoderms. Testing material: A newly found protochordate species (i.e., a vertebrate forerunner). Example of weakening observation (that ... shows how science works, beginning with the placement of hypothesis and further observational testing.)

Which of the following is the same for both radioactive iodine and stable iodine? w) number of neutrons x) mass number y) half-life z) chemical properties

Description : Which of the following is the same for both radioactive iodine and stable iodine? w) number of neutrons x) mass number y) half-life z) chemical properties

Last Answer : ANSWER: Z -- CHEMICAL PROPERTIES

What source and strength of radioactivity could cause mercury dental fillings to become radioactive?

Description : What source and strength of radioactivity could cause mercury dental fillings to become radioactive?

Last Answer : answer:In general, things don't become radioactive simply by being exposed to radioactivity. (I hate to say never , because I don't know if an incredibly large radioactive burst ... think it is possible for dental fillings to become radioactive from exposure to (survivable) ionizing radiation.

Could internal conversion or ultrafast internal conversion, be artificially started in humans and create Radioactivity?

Description : Could internal conversion or ultrafast internal conversion, be artificially started in humans and create Radioactivity?

Last Answer : I’m sorry without a better explanation of the terms to which you refer, I could not venture to offer a useful answer. Please clarify!

Radioactivity in the Pacific Ocean - How long can the dumping of radioactive water in Japan continue?

Description : Radioactivity in the Pacific Ocean - How long can the dumping of radioactive water in Japan continue?

Last Answer : answer:I completely agree that this turn of events makes this an international issue. I don't know if we're talking about international waters or not, but it's everyone's ocean and at this point we ... the validity of nuclear power into question. When it comes to energy, I'm very pro-green power.

Is anyone concerned about the radioactivity from the crippled (and possibly melted down) nuclear reactors in Japan?

Description : Is anyone concerned about the radioactivity from the crippled (and possibly melted down) nuclear reactors in Japan?

Last Answer : I haven’t actually thought about that. Interesting. I honestly have no idea, but all I can say is… I sure hope the radiation exposure doesn’t spread.

Are there any famous scientific studies about granite emitting radioactivity?

Description : Are there any famous scientific studies about granite emitting radioactivity?

Last Answer : answer:I took an intro to philosophy class where we watched a video showing these little circles in the granite caused by the decay of radioactive materials and using it as evidence for creationism. This link ... you are concerned about. http://www.halos.com/printer.htm?page=/book/ctm-app-22-a.htm

I need a title for my science fair about radioactivity in granite. Any suggestions?

Description : I need a title for my science fair about radioactivity in granite. Any suggestions?

Last Answer : It is written in stone.

Into which of the following metals does radioactive Uranium decay when it loses all its radioactivity? -General Knowledge

Description : Into which of the following metals does radioactive Uranium decay when it loses all its radioactivity? -General Knowledge

Last Answer : Lead is the metal.

Who discovered radioactivity? -General Knowledge

Description : Who discovered radioactivity? -General Knowledge

Last Answer : answer:

What is radioactivity ?

Description : What is radioactivity ?

Last Answer : Radioactivity is the phenomenon in which certain elements, known as radioactive isotopes, emit energetic particles and electromagnetic radiation as they undergo decay. These emissions include alpha particles ... by human means, such as nuclear reactions, particle accelerators, and nuclear medicine.

What is Artificial Radioactivity ?

Description : What is Artificial Radioactivity ?

Last Answer : Artificial Radioactive Substances: When an element is artificially converted to radioactive elements, those elements are called artificial radioactive elements. When an element is hit by a particle of very ... are called synthetic radioactive elements or radioisotopes. E.g. , carbon , oxygen, etc.

How was the danger of radioactivity first discovered ?

Description : How was the danger of radioactivity first discovered ?

Last Answer : The dangers of radioactivity and radiation were not immediately realized. The strongest reaction to radiation was first noticed in the use of X-rays when electrical engineer and physicist Nikola Tesla ... genetic effects of radiation. He was awarded the Nobel Prize in 1948 for his discovery.

What is the unit of measurement of radioactivity ?

Description : What is the unit of measurement of radioactivity ?

Last Answer : The unit of radioactivity measure is Becquerel.

Who Discovers Radioactivity ?

Description : Who Discovers Radioactivity ?

Last Answer : Henry Becquerel discovers radioactivity.

Who is the father of radioactivity ?

Description : Who is the father of radioactivity ?

Last Answer : Henry Becquerel, the father of radioactivity