Only the valence electrons in an atom take part in chemical bonds.

A)Paired

B)Unpaired

What happens to isotopes that are unstable?

How does the motion of particles in a gas change as the gas cools

An unknown substance has been shown to have weak covalent bonds. which of the following is most likely a property of this substance? a. high ph b. high conductivity c. low melting point d. low flammability