Assertion (A): Electrons present in ground states of different single electron species `(H,He^(+), Li^(++))` possess different amount of energy.
Reason (R) : Distances of electrons from the nuclei of different single electron are equal.

Options

A. Both A and R are correct and R is the correct explanation of A.
B. Both A and R are correct and R is not the correct explanation of A.
C. A is correct and R is wrong.
D. A is wrong and R is correct.

Explanation

The electrons present in different single electron species
possess different amounts of energy due to the difference in the atomic numbers.
The distance of the electrons from the nuclei of different single electron species is different because of difference in atomic number. Hence, correct option is (c).