Which example best illustrates that light behaves like particles?
light bends as it strikes a window.
light bounces off a white cement sidewalk.
light travels in space at a speed of about 3.0 x 108 m/s.
light increases in speed as it moves through matter.

Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?