Question

A neutral atom of an element has a nucleus with nuclear charge $11$ times and mass $23$ times that of hydrogen. The element can form a stable ion by:

• A. Losing $1$ electron
• B. Losing $2$ electrons
• C. Gaining $1$ electron
• D. Gaining $2$ electrons

Answer 1

The correct option is A Losing $1$ electron

Hydrogen atom has nuclear charge of +1 and mass of 1.

So, from the given data the given neutral atom of an element has a nucleus with nuclear charge $11\times 1=11$ and mass $23\times 1=23$

Now, we know that the element is none other than Sodium $\left(Na\right)$ atom.
$Na$ can form a stable charged ion by losing 1 electron so that it attains stable electronic configuration of $Ne$ noble gas.

Hence, the correct option is A.