What is a chemical bond?
a. the attraction of two atoms that holds the atoms together
b. a substance that's composed of atoms
c. a representation of chemical properties
d. the force that holds together the elements in a compound

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.