Solid solutions are only formed with metals. True False

False

Explanation:

Metals are materials that exist in the form of solid (state of matter). It is not true that solid solutions are only formed with metals. A solid solution is a solid-state solution of one or more solutes in a solvent. The solid solution can be formed with different forms. In general, solid solutions formed by mixing a foreign elements Y (solute) with a perfect crystalline element X (solvent) and atoms of both X and Y share the various crystal sites.

it's c. elements are placed in rows based on how may valencies electrons have.