And today's question.

So what do the other metals do?

What we already know

Valencies of groups 1, 2, 3, 6 and 7

Transition metals are a little more complex

chromium  - Cr can be 2+ 3+ 4+ 5+ and 6+

manganese - Mn 2+ 3+ 4+ 5+ 6+ 7+

etc...