Question

identify the period of 10,14,20 elements in the periodic table​

Answer 1

Electronic configuration(10th element)

is 2,8 i.e number of shells = 2

HENCE ITS PERIOD(10TH ELEMENT) = 2

Electronic configuration(14th element)

is 2,8,4 i.e number of shells = 3

HENCE ITS PERIOD(14TH ELEMENT) = 3

Electronic configuration(20th element)

is 2,8,8,2 i.e number of shells = 4

HENCE ITS PERIOD(20TH ELEMENT) = 4