Question

Write the electronic configuration of the element whose atomic charge and mass is 11 times and 23 times of the hydrogen.

• A. $2,1$
• B. $2,8,1$
• C. $2,8$
• D. $2,8,8,3$

Answer 1

Answer: (B)

$2,8,1$

The atom belong to sodium , because the nuclear charge of the atom is 11 times and atomic mass of the atom is 23 ( nutron + protone) times of the hydrogen. As, hydrogen is having atomic mass and charge 1. Hence, the neutral sodium atom has 11 electrons and its its electronic configuration is $2,8,1.$