When an isotope is blank it is radioactive?

When an isotope is blank it is radioactive?
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When an isotope is unstable, it is said to be radioactive.
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What During blank an unstable isotope breaks down into a stable isotope?

Description : What During blank an unstable isotope breaks down into a stable isotope?

Last Answer : It is by radioactive decay that unstable isotopes break down into stable isotopes.

Is the decay of a radioactive isotope predictable (causally determined) or not?

Description : Is the decay of a radioactive isotope predictable (causally determined) or not?

Last Answer : At this point it seems to be a result of quantum indeterminacy. In other words, since the Heisenberg uncertainty principle is in effect at that level, all we can determine is probability (hence a predictable ... , it is deterministic and we will (hopefully) one day be able to understand it as such.

The radioactive isotope of cerium - 137 of weigh 8g was collected on 1st Feb. 2006 kept in a sealed tube. On 1st July, 2006, it was found that only 0.

Description : The radioactive isotope of cerium - 137 of weigh 8g was collected on 1st Feb. 2006 kept in a sealed tube. On 1st July, 2006, it was found that only 0.

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Assertion (A) : Half life of a radioactive isotope is the time required to decrease its mass number by half Reason (R ) : Half life of radioactive iso

Description : Assertion (A) : Half life of a radioactive isotope is the time required to decrease its mass number by half Reason (R ) : Half life of radioactive iso

Last Answer : Assertion (A) : Half life of a radioactive isotope is the time required to decrease its mass number by half ... . If both (A) and (R ) are incorrect.

(A) The archaeological studies are based on the radioactive decay of carbon-14 isotope. (R ) The ratio of C-14 to C-12 in the animals of plants is the

Description : (A) The archaeological studies are based on the radioactive decay of carbon-14 isotope. (R ) The ratio of C-14 to C-12 in the animals of plants is the

Last Answer : (A) The archaeological studies are based on the radioactive decay of carbon-14 isotope. (R ) The ratio of C ... D. If both (A) and (R ) are incorrect.

The half life of radioactive isotope is 3 hour. If the initial mass of isotope were 256 g, the mass of it remaining undecayed after 18 hr is a)12 g b)

Description : The half life of radioactive isotope is 3 hour. If the initial mass of isotope were 256 g, the mass of it remaining undecayed after 18 hr is a)12 g b)

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Which radioactive isotope is used to detect tumours?

Description : Which radioactive isotope is used to detect tumours?

Last Answer : Which radioactive isotope is used to detect tumours? A. `.^(74)As` B. `.^(24)Na` C. `.^(131)I` D. `.^(60)Co`

When `._(13)^(27)Al` is bombarded whith `alpha`-particles, a radioactive isotope of phosphorus `._(15)^(30)P` with the emission of …. Is formed

Description : When `._(13)^(27)Al` is bombarded whith `alpha`-particles, a radioactive isotope of phosphorus `._(15)^(30)P` with the emission of …. Is formed

Last Answer : When `._(13)^(27)Al` is bombarded whith `alpha`-particles, a radioactive isotope of phosphorus ` ... A. neutrons B. protons C. positrons D. electrons

A radioactive isotope having a half life of 3 days was received after 12 days. It was found that there were 3 gm of the isotopes in the container. The

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When does an isotope undergo radioactive decay?

Description : When does an isotope undergo radioactive decay?

Last Answer : An atom of a given isotope will undergo radioactive decay whenever it feels like it. No joke. The nucleus of a radioactive isotope is unstable. Always. But that atom has no predictable moment ... to decay, except that those with very short half lives will pretty much disappear relatively quickly.

What type of decay involves only the release of high-energy photons and therefore does not change the mass of an atom of a radioactive isotope?

Description : What type of decay involves only the release of high-energy photons and therefore does not change the mass of an atom of a radioactive isotope?

Last Answer : High-energy photons are gamma rays; the decay is called gamma decay. Please note that the mass of an atom DOES change, since a loss of energy is accompanied by a loss in mass.

What name is given to the time taken for half the atoms in a sample of a radioactive isotope to decay?

Description : What name is given to the time taken for half the atoms in a sample of a radioactive isotope to decay?

Last Answer : Half-life

A radioactive isotope labeled cDNA probe is used in (A) Southern blotting (B) Northern blotting (C) Both (A) and (B) (D) None of these

Description : A radioactive isotope labeled cDNA probe is used in (A) Southern blotting (B) Northern blotting (C) Both (A) and (B) (D) None of these

Last Answer : Answer : C

Pick out the wrong statement. (A) α-particle emission from a radioactive element makes it electrically negative (B) β-particle emission from a radioactive element makes it electrically positive (C) A radioactive element having a half life period of 20 years will completely disintegrated in 40 years (D) The disintegration constant of a radioactive isotope is independent of pressure, temperature or concentration

Description : Pick out the wrong statement. (A) α-particle emission from a radioactive element makes it electrically negative (B) β-particle emission from a radioactive element makes it electrically ... ) The disintegration constant of a radioactive isotope is independent of pressure, temperature or concentration

Last Answer : (C) A radioactive element having a half life period of 20 years will completely disintegrated in 40 years

Which one is the radioactive isotope of hydrogen? (A) Deuterium (B) Ortho-hydrogen (C) Tritium (D) None of these

Description : Which one is the radioactive isotope of hydrogen? (A) Deuterium (B) Ortho-hydrogen (C) Tritium (D) None of these

Last Answer : (C) Tritium

A radioactive isotope undergoes decay with respect to time following __________ law. (A) Logarithmic (B) Exponential (C) Linear (D) Inverse square

Description : A radioactive isotope undergoes decay with respect to time following __________ law. (A) Logarithmic (B) Exponential (C) Linear (D) Inverse square

Last Answer : (B) Exponential

The time required for half of the __________ of a radioactive isotope to decay is called its half life. (A) Nuclei (B) Electrons

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

The radioactive isotope of hydrogen is called--------- and its nucleus contains --------proton and --- --neutron.

Description : The radioactive isotope of hydrogen is called--------- and its nucleus contains --------proton and --- --neutron.

Last Answer : Ans: Tritium, one and two

Radioactive isotope of Uranium used in Nuclear Bomb is ? A.92 U 235 (Answer) B.92 U 234 C. 92 U 233 D. 92 U 238

Description : Radioactive isotope of Uranium used in Nuclear Bomb is ? A.92 U 235 (Answer) B.92 U 234 C. 92 U 233 D. 92 U 238

Last Answer : A.92 U 235 (Answer)

Which technique has helped in investigation of Calvin cycle? (a) X-ray crystallography (b) X-ray technique (c) Radioactive isotope technique (d) Intermittent light

Description : Which technique has helped in investigation of Calvin cycle? (a) X-ray crystallography (b) X-ray technique (c) Radioactive isotope technique (d) Intermittent light

Last Answer : (c) Radioactive isotope technique

A radioactive isotope has a half-life of 10 days. If today there are 125 g of it left, what was its original weight...

Description : A radioactive isotope has a half-life of 10 days. If today there are 125 g of it left, what was its original weight 40 days earlier  (a) 600 g (b) 1000 g (c) 1250 g (d) 2000 g 

Last Answer : Half life = 10days  The formula which is, 1/(2)^n × original weight = Weight left today.  To obtain the value of n = divide no of days by half life ie.,n= 40/10= 4 n=4 So, 1/(2)^n × original Weight = 125g 1/(2)^4 × Original weight = 125 Original weight = 16×125 = 2000g

What is the difference between an isotope and an ion?

Description : What is the difference between an isotope and an ion?

Last Answer : A: An isotope is an atom of an element with a different number of neutrons, while an ion is an atom or molecule with a net electrical charge due to the loss or gain of one or more electrons.

The isotope deuterium of hydrogen has : -Science

Description : The isotope deuterium of hydrogen has : -Science

Last Answer : Hydrogen has no neutron, deuterium has one, and tritium has two neutrons. The isotopes of hydrogen have, respectively, mass numbers of one, two, and three.

Which isotope of uranium capable of sustaining chain reactions? -Do You Know?

Description : Which isotope of uranium capable of sustaining chain reactions? -Do You Know?

Last Answer : answer:

How many protons will remain when cobalt isotope with atomic number 27 losses 3 electrons?

Description : How many protons will remain when cobalt isotope with atomic number 27 losses 3 electrons?

Last Answer : 110 to 114

What is the half-life of carbon 12 isotope ?

Description : What is the half-life of carbon 12 isotope ?

Last Answer : Carbon -12 is a normal atom. It is not radioactive. C- 14 is radioactive. Its half -life is 5,630 years

Which isotope is used in the treatment of leukemia ?

Description : Which isotope is used in the treatment of leukemia ?

Last Answer : Phosphate of phosphorus 32 is used in the treatment of leukemia .

Which Isotope Destroys Cancer Cells ?

Description : Which Isotope Destroys Cancer Cells ?

Last Answer : : The isotope cobalt _60 destroys cancer cells.

What is the difference between isotope and isobar ?

Description : What is the difference between isotope and isobar ?

Last Answer : Isotopes are different forms of the same atom , so that the mass numbers are different. And isobars are atoms of different elements with the same mass. So isotopes will have many similarities in basic properties , but there may be no similarities between isobars.

What is the isotope of chlorine ?

Description : What is the isotope of chlorine ?

Last Answer : : The number of isotopes of chloris is 2

What are the properties of isotope ?

Description : What are the properties of isotope ?

Last Answer : It has the same atomic number but different neutron and mass numbers.

What is radio isotope used for ?

Last Answer : Radioisotope is used in goiter

What is an isotope ?

Last Answer : Atoms that have the same number of protons but different numbers of masses and neutrons are called isotopes of each other.

The isotope of carbon used extensively for studies in photosynthesis is

Description : The isotope of carbon used extensively for studies in photosynthesis is

Last Answer : The isotope of carbon used extensively for studies in photosynthesis is A. `C^(13)` B. `C^(14)` C. `C^(15)` D. `C^(16)`

The `t_(1//2)` of a radionuclide is 8 hours. Starting with 40 g of the isotope, the amount in gm remainig after one day will be:

Description : The `t_(1//2)` of a radionuclide is 8 hours. Starting with 40 g of the isotope, the amount in gm remainig after one day will be:

Last Answer : The `t_(1//2)` of a radionuclide is 8 hours. Starting with 40 g of the isotope, the amount in gm remainig after one day will be:

A photon of gamma radiation knocks out a proton from `""_(12)Mg""^(24)` nucleus to form a)The isotope of parent nucleus b)The isobar of parent nucleus

Description : A photon of gamma radiation knocks out a proton from `""_(12)Mg""^(24)` nucleus to form a)The isotope of parent nucleus b)The isobar of parent nucleus

Last Answer : A photon of gamma radiation knocks out a proton from `""_(12)Mg""^(24)` nucleus to form a)The isotope of ... )Na` D. the isobar of `._(11)^(23)Na`

`._(13)Al^(27)` is a stable isotope. `._(13)Al^(29)` is expected to disintegrate by

Description : `._(13)Al^(27)` is a stable isotope. `._(13)Al^(29)` is expected to disintegrate by

Last Answer : `._(13)Al^(27)` is a stable isotope. `._(13)Al^(29)` is expected to disintegrate by A. ... B. `beta`-emission C. positron emission D. proton emission

The `.^(60)C` isotope decays with a half life of 5.3 years. How long would it take for 7/8 of a sample of 500 mg of `.^(60)Co` to disintegrate?

Description : The `.^(60)C` isotope decays with a half life of 5.3 years. How long would it take for 7/8 of a sample of 500 mg of `.^(60)Co` to disintegrate?

Last Answer : The `.^(60)C` isotope decays with a half life of 5.3 years. How long would it take for 7/8 of a sample ... B. 15.9 years C. 10.6 years D. 5.3 years

The isotope `._(92)^(235)U` decays in a number of steps to an isotope of `._(82)^(207)Pb`. The groups of particle emitted in this process will be:

Description : The isotope `._(92)^(235)U` decays in a number of steps to an isotope of `._(82)^(207)Pb`. The groups of particle emitted in this process will be:

Last Answer : The isotope `._(92)^(235)U` decays in a number of steps to an isotope of `._(82)^(207)Pb`. The groups ... C. `7 alpha, 4 beta` D. `10 alpha, 8 beta`

The unstable isotope of hydrogen is …..

Description : The unstable isotope of hydrogen is …..

Last Answer : The unstable isotope of hydrogen is ….. a. H-1 b. H-2 c. H-3 d. H-4

What isotope has 12 protons and 13 neutrons?

Description : What isotope has 12 protons and 13 neutrons?

Last Answer : Need answer

If an isotope of silicon has 15 neutrons what is the mass number?

Description : If an isotope of silicon has 15 neutrons what is the mass number?

Last Answer : Need answer

Is deuterium an isotope?

Description : Is deuterium an isotope?

Last Answer : Having only one proton deuterium has the atomic number 1, ashydrogen; but because deuterium has also and a neutron, the atom isdifferent compared to the atom of hydrogen. Consequently deuteriumis an isotope of hydrogen with the Atomic Mass 2.

What daughter product is produced when thallium-206 an isotope of thallium undergoes beta minus decay?

Description : What daughter product is produced when thallium-206 an isotope of thallium undergoes beta minus decay?

Last Answer : This isotope is lead-206.

What type of isotope is used for drug metabolism studies?

Description : What type of isotope is used for drug metabolism studies?

Last Answer : It will depend on the chemical structure of the drug and therate of metabolism. The most common isotopes that are used to "tag"drug molecules are tritium (3-H), carbon-14 (14-C), andphosphorous-32 (32-P). Other isotopes are also used, but these areprobably the most common.

How many protons and neutrons are in the nucleus of isotope with mass of 68.926?

Description : How many protons and neutrons are in the nucleus of isotope with mass of 68.926?

Last Answer : p,n =31,38P=31 (from Periodic Table)N= 68.926-31=37.926

How many neutrons are in an isotope of chlorine 36?

Description : How many neutrons are in an isotope of chlorine 36?

Last Answer : Chlorine-36 has 19 electrons.

How many neutrons does isotope krypton 86 have?

Description : How many neutrons does isotope krypton 86 have?

Last Answer : Feel Free to Answer

What are the purposes of isotope labeling?

Description : What are the purposes of isotope labeling?

Last Answer : Isotopes are variants of a particular chemical element whichdiffer in neutron number, although all isotopes of a given elementhave the same number of protons in each atom. Isotope VariationAnalysis ( ... used, they can be detected by theradiation they emit (this is called radioisotopic labeling).

If the heaviest isotope was more abundant and the other two isotopes were less abundant what would happen to the atomic weight of beanium?

Description : If the heaviest isotope was more abundant and the other two isotopes were less abundant what would happen to the atomic weight of beanium?

Last Answer : What is the answer ?