Question

The number of electrons in the penultimate she'll of the element of period 3​

Answer 1

Answer:

8

Explanation:

First period elements can accommodate 2 electrons in its orbit.

Second period elements can accommodate 8 electrons in its orbit

Where as third period elements can as lo accommodate 8 electrons in its orbit.

In third period element we have three shells where last shell is called as valence shell and next to that shell is called penultimate shell it means that is the second shell, and second shell ( second period elements contains 8 electrons.)