edurack

Nuclei: NEET 2021

Medium· Radioactivity (Alpha Decay and Beta Decay)· +4 / −1

A radioactive nucleus

^{A}_{Z}\mathrm{X}

undergoes spontaneous decay in the sequence

^{A}_{Z}\mathrm{X} \rightarrow {}_{Z-1}\mathrm{B} \rightarrow {}_{Z-3}\mathrm{C} \rightarrow {}_{Z-2}\mathrm{D}

, where

Z

is the atomic number of element X. The possible decay particles in the sequence are :

Practise more Nuclei PYQs

In the given nuclear reaction, the element X is: ^22_11Na X + e^++
NEET 2022 · Medium
^290_82X α Y e^+ Z β^- P e^- Q In the nuclear emission stated above, the mass number and atomic number of the product Q respectively, are:
NEET 2024 · Easy
A nucleus with mass number 240 breaks into two fragments each of mass number 120 , the binding energy per nucleon of unfragmented nuclei…
NEET 2021 · Medium
The half-life of a radioactive nuclide is 100 hours. The fraction of original activity that will remain after 150 hours would be :
NEET 2021 · Medium
The half life of a radioactive substance is 20 minutes. In how much time, the activity of substance drops to (116)^th of its initial value?
NEET 2023 · Easy
The energy required to break one bond in DNA is 10^-20 J. This value in eV is nearly :
NEET 2020 · Easy