Which is true about each group of atoms that makes up a compound? Each group is identical

Some groups are different sizes

Each group contains only one type of atom

The groups are made of atoms that are physically combined

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.

explanation:

0.07 g/cm³

1.37 g/cm³