Give three example of univalent element

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

What conclusion can you draw from this experiment about the components of the black ink?