Chapter 15, Problem 5RAT

To determine

The correct option for the statement “If two protons and two neutrons are removed from the nucleus of neon-20, a nucleus of which element remains”.

Answer to Problem 5RAT

The correct option for the statement “If two protons and two neutrons are removed from the nucleus of neon-20, a nucleus of which element remains” is option (d).

Explanation of Solution

When two protons and two neutrons are removed from neon-20 than the number of 8 proton and 8 neutrons remain in the nucleus of it. We know that 8 protons and 8 neutrons were present in the nucleus of an oxygen atom. So the atom of neon-20 becomes the atom of oxygen-16.

Oxygen-16 is a stable isotope of oxygen, which contains 8 protons and 8 neutrons present in its nucleus. It has the atomic mass$15.994\text{ u}$ , it is the most abundant form of oxygen present in nature, approximate $99.76$%.

Conclusion:

Therefore, the correct option for the statement “If two protons and two neutrons are removed from the nucleus of neon-20, a nucleus of which element remains” is option (d).