When a parent radioactive nucleus splits by ejecting an alpha particle, the remaining nucleus has _the origin?

Question

When a parent radioactive nucleus splits by ejecting an alpha particle, the remaining nucleus has _the original nucleus.
A. 2 protons less and 2 neutrons more than
B. 2 protons and 2 neutrons less than
C. 2 protons and two neutrons more than
D. the same number of protons and nuetrons as
E. 2 protons more and 2 neutrons less than

Answer 1

An alpha particle consists of 2 protons and 2 neutrons.
This alpha particle is ejected from the nucleus so the answer is B.

Answer 2

B.
An alpha particle is 2 protons and 2 neutrons (a Helium-4 ion). So, the parent loses 2 protons and 2 neutrons.

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