Can someone help me with this? :(

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

What type of matter is made of only one kind of atom

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius