What is the most common state of matter-?

Answer 1

Plasma is the most common state of matter. Plasma is a mixture of atoms and ions and electrons where electrons are mobile with respect to the ions and atoms. For example, electrons in conducting metals constitute a Plasma mixture; ionized gas is a plasma mixture. The key to Plasmas is the presence of mobile charges in a mixture. The mixture can be charge balanced, (plus and minus charge equal), but some charges are mobile, not bound. For example atoms in a crystal may be bound in the crystal structure but their electrons can move within the crystal structure, thus creating a an electron plasma.

Answer 2

Although solid, gas and liquid are the most common states of matter on Earth, much of the baryonic matter of universe is in the form of hot plasma, both as rarefied interstellar medium and as dense stars.

Answer 3

Plasma