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Artificial Radioactivity

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Question

The first artificial disintegration of an atomic nucleus was achieved by

A

Geiger

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B

Wilson

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C

Madame curie

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D

Rutherford

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E

Soddy

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Solution

The correct option is C Madame curie

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Q. The first artificial disintegration of an atomic nucleus was achieved by

Q. Assertion :Protons are more effective than neutrons of equal energy in causing artificial disintegration of atoms. Reason: Neutrons are neutral and they penetrate the nucleus.

Assertion : Protones are more effective than neutrons of equal energy in causing artificial disintegration of atoms.

Reason : Neutrons are neutral they penetrate the nucleus.

Q. Radioactivity is the random spontaneous disintegration of an atom of an element. The stability of the nucleus depends on the relative numbers of protons and neutrons present. Radioactive disintegration is an example of
(a) a first order reaction
(b) a reaction that obeys rate law
(c) a second order reaction

Q. Assertion :In a radioactive disintegration, an electron is emitted by the nucleus. Reason: Electrons are always present inside the nucleus.

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