Question

Where would you locate the element with electronic configuration 2,8 in the modern periodic table?

Answer 1

Explanation:

An element with electronic configuration 2,8 will have an atomic number 10.

Therefore, distribution of electrons in its sub shells is as follows.

                $1s^{2}2s^{2}2p^{6}$

Thus, this element has completely filled sub shells and hence, it belongs to group 18 which is also known as noble gas group.

Hence, we will place this element on the extreme right side below the helium atom. This element is neon.

Answer 2

Answer:

it will be in group 18 .

it is neon 2,8......