Density is the ratio of mass to volume. Troy listed the density of four metals at 20°C. If troy has a 4-cm3 cube of each of these metals, which cube will have the greatest mass?

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

Nuclear decay is the spontaneous decay of one element into a. an x-ray b. a ray of light c. another element