# NEET Physics Nuclei Questions Solved

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NEET - 2009

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

(a) isobar of parent                                   (b) isomer of parent

(c) isotone of parent                                  (d) isotope of parent

Let the radioactive substance be ${}_{\mathrm{Z}}{}^{\mathrm{A}}\mathrm{X}$

Radioactive transition is given by

The atoms of element having same atomic number but different mass numbers are called isotopes.

So ${}_{\mathrm{Z}}{}^{\mathrm{A}}\mathrm{X}$ and ${}_{\mathrm{Z}}{}^{\mathrm{A}-4}\mathrm{X}$ are isotopes.

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