Question

A radioactive element is present in VIII group of the periodic table. If it emits one $\alpha$-particle, the new position of the nuclide will be:

• A. VI B
• B. VIII
• C. VII B
• D. I B

Answer 1

Answer: (A), (B), (C)

The correct options are
A VII B
B VIII
C VI B

As ${}_2^4\alpha$ decrease nucleide number by 2 thus the stater nucleus can go to $VII$ B,$VI$ and stay in $VIII.$