Question:
When a nucleus in an atom undergoes a radioactive decay, the electronic energy levels of the atom
When a nucleus in an atom undergoes a radioactive decay, the electronic energy levels of the atom
Updated On: Jul 7, 2022
- do not change for any type of radioactivity
- change for $\alpha$ and $\beta$ radioactivity but not for $\gamma$- radioactivity
- change for $\alpha$-radioactivity but not for others
- change for $\beta$-radioactivity but not for others
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The Correct Option is B
Solution and Explanation
As an alpha particle carries $2$ units of positive charge, and a beta particle carries one unit of negative charge and $\gamma$ particle carries no charge, therefore electronic energy levels of the atom change for $\alpha$ and $\beta$ radioactivity, but not for $\gamma$-radioactivity
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Concepts Used:
Nuclei
In the year 1911, Rutherford discovered the atomic nucleus along with his associates. It is already known that every atom is manufactured of positive charge and mass in the form of a nucleus that is concentrated at the center of the atom. More than 99.9% of the mass of an atom is located in the nucleus. Additionally, the size of the atom is of the order of 10-10 m and that of the nucleus is of the order of 10-15 m.
Read More: Nuclei
Following are the terms related to nucleus:
- Atomic Number
- Mass Number
- Nuclear Size
- Nuclear Density
- Atomic Mass Unit