The formula for oxygen is O2. What does this formula indicate?

See the explanation below,please.

Explanation:

The formula of molecule 02 (oxygen) means that 2 oxygen atoms combine to form said compound. This element requires 2 electrons to complete its octet, through a double bond.

The oxygen (02) corresponds to a diatomic molecule, being an odorless, colorless and insipid gas.

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.

the answers are

c and c