Question

How to find block and group no. by using spdf with example​

Answer 1

Answer:

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.

c)For d block elements ,group number is equal to the number of electrons in a (n-1) sub shell + the number of electrons in valence shell.