130k views
3 votes
Ow many valence electrons do atoms in group 1, group 2, group 15, group 16, group 17 have?

User Jrkt
by
5.6k points

1 Answer

4 votes
Group 1 ( alkalis metals) - 1 valence electron

Group 2 ( alkaline earth metals) - 2 valence electrons

Group 15 ( pnictogens or nitrogen group)
- 5 valence electrons

Group 16 ( chalcogens or oxygen group) - 6 valence electrons

Group 17 ( halogens ) - 7 valence electrons
User Crawler
by
5.3k points