How IS energy related to the change of state represented by the model?
Atoms gain energy as a solid changes to a gas.
Atoms gain energy as a liquid changes to a gas.
Atoms lose energy as a solid changes to a gas.
Atoms lose energy as a liquid changes to a gas.

Why are the trends and exceptions to the trends in ionization energy observed?

Identify the missing numbers below to show the result of multiplying the numbers (1.6 × 10-19)(5.0 × 106) = c × 10d

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.