2. Which statement is true about all metals? A. They have one valence electron.
B. They have freely moving electrons.
C. They have more electrons than protons.
D. They always gain electrons.

Explanation:

a) 1/2 true: The Alkali metal group has one valence electron but Earth metals have two valence electrons.

b;) true Metals are good conductors because they have many free electrons.

c:)a negative ion has more electrons than protons

d;) metals lose electrons and non-metals gain electrons. metals transfer electrons to nonmetals.

I think B is your best answer.