Types of Decay Mini Q Bank - Nuclei Nuclei Physics NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

In the nuclear decay given below:
${}_{Z}^{A}X \to {}_{Z + 1}^{A}Y \to {}_{Z - 1}^{A - 4}B \to {}_{Z - 1}^{A - 4}B$
the particles emitted in the sequence are:

1.	$\beta, \alpha, \gamma $	2.	$\gamma, \beta, \alpha $
3.	$\beta, \gamma, \alpha $	4.	$\alpha, \beta, \gamma$

Subtopic: Types of Decay |

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An atomic nucleus ${}_{90}^{232}\mathrm{Th}$ emits several $\alpha$ and $\beta$ radiations and finally reduces to ${}_{82}^{208}\mathrm{Pb}$. It must have emitted:
1. $4\alpha~\text{and}~2\beta$
2. $6\alpha~\text{and}~4\beta$
3. $8\alpha~\text{and}~24\beta$
4. $4\alpha~\text{and}~16\beta$

Subtopic: Types of Decay |

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After two alpha decays and four beta(-ve) decays, the atomic number:

1.	Decreases by $4$ and mass number remains same.
2.	Remains the same but the mass number increases by $4$.
3.	Remains the same but mass number decreases by $8$.
4.	Increases but mass number remains same.

Subtopic: Types of Decay |

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What happens to the mass number and the atomic number of an element when it emits $\gamma\text{-}$radiation?

1.	mass number decreases by four and atomic number decreases by two.
2.	mass number and atomic number remain unchanged.
3.	mass number remains unchanged while the atomic number decreases by one.
4.	mass number increases by four and the atomic number increases by two.

Subtopic: Types of Decay |

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$\alpha\text-$particle consists of:

1.	$2$ protons only
2.	$2$ protons and $2$ neutrons only
3.	$2$ electrons, $2$ protons, and $2$ neutrons
4.	$2$ electrons and $4$ protons only

Subtopic: Types of Decay |

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In nuclear reaction ${}_{2}^{4}\mathrm{He}+ {}_{Z}^{A}\mathrm{X}\rightarrow {}_{Z+2}^{A+3}\mathrm{X}+\mathrm{B},$ $\mathrm {B}$ denotes:
1. Electron
2. Positron
3. Proton
4. Neutron

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The number of beta particles emitted by a radioactive substance is twice the number of alpha particles emitted by it. The resulting daughter is an:
1. Isobar of a parent.
2. Isomer of a parent.
3. Isotone of a parent.
4. Isotope of a parent.

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The nucleus ${ }_{6}^{12} \mathrm{C}$ absorbs an energetic neutron and emits $\beta\text-$particle. The resulting nucleus is:

1.	${ }_{7}^{14} \mathrm{N}$	2.	${ }_{5}^{13} \mathrm{B}$
3.	${ }_{7}^{13} \mathrm{N}$	4.	${ }_{6}^{13} \mathrm{C}$

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1.	\(\beta, \alpha, \gamma \)	2.	\(\gamma, \beta, \alpha \)
3.	\(\beta, \gamma, \alpha \)	4.	\(\alpha, \beta, \gamma\)

1.	Decreases by \(4\) and mass number remains same.
2.	Remains the same but the mass number increases by \(4\).
3.	Remains the same but mass number decreases by \(8\).
4.	Increases but mass number remains same.

1.	\(2\) protons only
2.	\(2\) protons and \(2\) neutrons only
3.	\(2\) electrons, \(2\) protons, and \(2\) neutrons
4.	\(2\) electrons and \(4\) protons only

1.	\({ }_{7}^{14} \mathrm{N}\)	2.	\({ }_{5}^{13} \mathrm{B}\)
3.	\({ }_{7}^{13} \mathrm{N}\)	4.	\({ }_{6}^{13} \mathrm{C}\)

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