Which is true about atoms? A. They are always made from other compounds.
B. They are always motionless.
C. They can combine to form other substances.
D. They cannot combine to form other
simbstances.

2b2t

explanation:

2b2t

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.

answerambulatory;