Question

what is the valency of main group elements?​

Answer 1

Answer:

The number of valence electrons

Periodic table group Valence Electrons

Group 1 (I) (alkali metals) 1

Group 2 (II) (alkaline earth metals) 2

Groups 3-12 (transition metals) 2* (The 4s shell is complete and cannot hold any more electrons)

Group 13 (III) (boron group)