In the nuclear decay given below:
the particles emitted in the sequence are:
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. |
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. |
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 |
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.
1. | \({ }_{7}^{14} \mathrm{N}\) | 2. | \({ }_{5}^{13} \mathrm{B}\) |
3. | \({ }_{7}^{13} \mathrm{N}\) | 4. | \({ }_{6}^{13} \mathrm{C}\) |