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.
Description : The process of splitting a heavy nucleus into two medium sized nuclei along with release of neutrons is called
Last Answer : nuclear fission.
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
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.
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.
Description : Choose the incorrect statement from the following: (a) The nuclear becomes weak if the nucleus contains too many protons compared to the number of neutrons (b) The nuclear force becomes weak if the ... (d) The nuclear force becomes very strong if the nucleus contains a large number of nucleons.
Last Answer : Ans:(d)
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
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)
Description : Name two elements with same number of protons and neutrons? -Chemistry 9th
Last Answer : Helium and Carbon are two elements with same number of protons and neutrons.
Description : The two elements which are used to absorb the neutrons in nuclear fission during chain reaction
Last Answer : Boran and Cadmium
Description : Hydrogen bonds are formed when a hydrogen atom is shared between two ____. a. molecules c. elements b. atoms d. neutrons
Last Answer : a. molecules
Description : Two elements which are used to absorb neutrons to control the chain reaction during nuclear fission are (1) Boron and Cadmium (2) Boron and Plutonium (3) Cadmium and Uranium (4) Uranium and Boron
Last Answer : Boron and Cadmium
Description : What are the atoms of the elements which have same number of neutrons called? -Do You Know?
Last Answer : answer:
Description : Atoms of different elements have - (1) same atomic number and same electronic configuration (2) different atomic number and same eletronic configuration (3) different atomic number and different number of valence electrons (4) same number of electrons and neutrons
Last Answer : (3) different atomic number and different number of valence electrons Explanation: Each element's atoms have a different number of protons, neutrons, and electrons, which is why they have different ... Their reactivity also varies because of the number and activeness of the electrons in the atom.
Description : wo elements which are used to absorb neutrons to control the chain reaction during nuclear fission are - (1) Boron and Cadmium (2) Boron and Plutonium (3) Cadmium and Uranium (4) Uranium and Boron
Last Answer : (1) Boron and Cadmium Explanation: Since the continued chain reaction of a nuclear fission reactor depends upon at least one neutron from each fission being absorbed by another fissionable nucleus, the ... and then the control rods are slowly lifted until a chain reaction can just be sustained.
Description : What are the atoms of the elements which have same number of neutrons called?
Last Answer : Isotones
Description : Atoms of elements having same number of neutrons are called?
Last Answer : Isotones eg : Helium
Description : What are the three subatomic particles of an atom? A. Protons,Neutrons & Electrons (Answer) B. Protons,Nucleus & Electrons C. Protons,Nucleus & Elements. D. Elements,Nucleus & Protons
Last Answer : A. Protons,Neutrons & Electrons (Answer)
Description : Atoms of the same element that have different numbers of neutrons are called _______ a. isotopes b. ions c. isomers d. inert elements
Last Answer : a. isotopes
Description : The periodic table arranges elements by the number of ____ in their outermost energy levels. a. neutrons c. protons b. atoms d. electrons
Last Answer : d. electrons
Description : Which one of the following best defines the word allotropes ? A Different structural forms of an element B A pair of substances that differ by H+ C Elements that possess properties intermediate between ... a specific number of neutrons E The different phases (solid, liquid or gas) of a substance
Last Answer : A Different structural forms of an element
Description : Atoms of different elements have (1) same atomic number and same electronic configuration (2) different atomic number and same eletronic configu-ration (3) different atomic number and different number of valence electrons (4) same number of electrons and neutrons
Last Answer : different atomic number and different number of valence electrons
Description : Taking the values of atomic masses from the tables, find the maximum kinetic energy of beta-particles emitted by `Be^(10)` nuclei formed directly in t
Last Answer : Taking the values of atomic masses from the tables, find the maximum kinetic energy of beta- ... )` nuclei formed directly in the ground state.
Description : The time required for half of the __________ of a radioactive isotope to decay is called its half life. (A) Nuclei (B) Electrons
Last Answer : (A) Nuclei
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
Description : If a U-238 nucleus splits into two identical parts, how will the two nuclei be so produced? -Do You Know?
Description : $ Karyokinesis is followed by cytokinesis. ! Two daughter nuclei are formed after telophase.
Last Answer : $ Karyokinesis is followed by cytokinesis. ! Two daughter nuclei are formed after telophase. A. If both As ... wrong D. If both As and R are wrong.
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
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
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.
Description : If a U-238 nucleus splits into two identical parts, how will the two nuclei be so produced?
Last Answer : Stable
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
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)
Description : Giardia trophozoites contains B A. One nucleus B. Two nuclei C. Three nuclei D. Four nuclei
Last Answer : Two nuclei
Description : Double fertilisation is fusion of (a) two eggs (b) two eggs and polar nuclei with pollen nuclei (c) one male gamete with egg and other with synergid (d) one male gamete with egg and other with secondary nucleus.
Last Answer : (d) one male gamete with egg and other with secondary nucleus.
Description : Endosperm is formed during the double fertilisation by (a) two polar nuclei and one male gamete (b) one polar nuclei and one male gamete (c) ovum and male gamete (d) two polar nuclei and two male gametes.
Last Answer : (a) two polar nuclei and one male gamete
Description : Double fertilisation is (a) fusion of two male gametes of a pollen tube with two different eggs (b) fusion of one male gamete with two polar nuclei (c) fusion of two male gametes with one egg (d) syngamy and triple fusion.
Last Answer : (d) syngamy and triple fusion.
Description : Which spore is on a club and results from the fusion of two nuclei from different strains ofthesame fungi? A- Ascospore B- Basidiospore C- Blastospore D- Conidiospore
Last Answer : Basidiospore
Description : Ciliates differ from all other protozoans in (1) using flagella for locomotion (2) having a contractile vacuole for removing excess water (3) using pseudopodia for capturing prey (4) having two types of nuclei
Last Answer : (4) having two types of nuclei
Description : Double fertilization is (1) Fusion of two male gametes of a pollen tube with two different eggs (2) Fusion of one male gamete with two polar nuclei (3) Fusion of two male gametes with one egg (4) Syngamy and triple fusion
Last Answer : (4) Syngamy and triple fusion
Description : Each chromosome consists of two identical (A) Genes (B) Nuclei (C) Chromatids (D) Bases
Last Answer : (C) Chromatids
Description : When embryosac receives two or more than two pollen tubes the sperm nucleus fusing with the egg nucleus may be derived from one pollen tube and one fusing with the polar nuclei may be derived from other pollen tube, the phenomenon is termed as
Last Answer : When embryosac receives two or more than two pollen tubes the sperm nucleus fusing with the egg nucleus may be derived from one pollen tube and one fusing with the polar nuclei may be derived from other pollen tube, the phenomenon is termed as – Heterofertilization
Description : In double fertilization, the two male nuclei fuse with
Last Answer : In double fertilization, the two male nuclei fuse with – Egg cell and Definitive nucleus
Description : What type of urban model (multiple nuclei, concentric zone, etc) does Antananarivo, Madagascar follow? How?
Last Answer : Could you Google a map of the city and see if by looking at it you can determine the pattern?
Description : Why is there a tedency for electrons to settle around a nuclei in up to eight layers?
Last Answer : Quantized energy levels result from the relation between a particle's energy and its wavelength. For a confined particle such as an electron in an atom, the wave function has the form of ... next possible orbit has a distance twice the electron's wavelength. There can be nothing in between.
Description : What is the difference between basal and hypothalamaic nuclei? -Biology
Description : What happens to polar nuclei after fertilization? -Biology
Description : How many polar nuclei are in the ovule of the angiosperm? -Biology
Description : Polar nuclei and double fertilization -Biology