1. Which of the following is the name of an ionic compound? (20 Points)
phosphorous monosulfide
dicarbon tetrahydride
potassium fluoride
xenon hexafluoride

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

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.

All cells are made of four types of acids, lipids, proteins, and carbohydrates.