Question

Write the electronic configurations, find the block, group and period of
(a) Fe (26) (b) C(6)​

Answer 1

Answer:

The group of an element is predicted from the number of electrons in the valence shell or/and penultimate shell as follows: a)For s block elements ,group number is equal to the number of valence electrons. b) For p block elements ,group number is equal to 10+number of electrons in the valence shell.