Periodic Trends Can the properties of an element be predicted using a periodic table?

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.

What type of matter is made of only one kind of atom

Which of these is an intensive property of a substance