Do metals tend to form positive or negative ions?

1 Answer
May 8, 2017

A metal tends to be reducing.........


And thus metals tend to form positive ions.

#M+Delta rarr M^(2+) + 2e^-#

At an atomic level, the valence electrons of the metal are conceived to be delocalized across the close-packed array of metal atoms (metal ions), i.e. #"positive ions in an electron sea"#. And this gives rise to the phenomenon of metallic bonding, which entails (i) malleabililty; (ii) ductility; and (iii) conductivity to heat and electricity.

See this old answer.