Question

the third period contains only eight elements even through the electron capacity of the third shell is 18

Answer 1

yes according to pascal law the orbit contains by 2nsq formulae first orbit contain 2e.2nd orbit contain 10e.third shell contain 18e

Answer 2

Answer:

brainliest please

Explanation:

(i) Period 3 of the periodic table consists of elements

whose atom has three shells occupied by electrons.

(ii) As per the electron holding capacity of shells,

2 elements are present in the first period, and

8 elements in the second period.

(iii) The third period also contain only eight elements

due to the law of electron octet and also electrons

will fill orbitals in increasing order of energy, i.e.

the lowest energy orbital first.