Question

How many periods are called short periods in the long form of the periodic table? Give their : (i) periodic numbers, (ii) number of elements in each period, (iii) name one element in each period.

Answer 1

there are three periods in the periodic table that called short period they are 1 2 and 3 because they contain only 2 and 8 elements in there period.

(1) there periodic number are between 1 to 18.

(2) in first period there are only two elements but in 2nd and 3rd period have 8 elements each period.

(3) in 1st period hydrogen

in 2nd period lithium

and in 3rd sodium

Answer 2

Answer:

There is only 2 short periods another one is shortest period