Q. 234.7( 3 Votes )

An element has atomic number 19. Where would you expect this element in the periodic table and why?

Answer :

The element has atomic number = 19

The electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

Number of valence electrons (4s1) = 1

Period number = 1

Group number = 4

This means the element having atomic number 19 belongs to s-block because the period number is 1.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.