Why isn't salt on the periodic table?

Answer 1

Air is a mixture of several gaseous elements, such as oxygen and nitrogen, and compounds, such as carbon dioxide.

In the sense of the four elements, water, fire, earth, and air, air is an element.

Answer 2

Because it isn't a single element. Air is a mixture of elements.

Answer 3

No, because air itself is not an element. It is, however, made up of many elements and compounds that are on the table, such as oxygen and nitrogen (they are in the air as O2 and N2).

Answer 4

Because it is a compound of 2 different elements and not an element itself.