My element is Oxygen.
Atomic number is 8 and The mass number is 8.
The period number is 2 and The Group number is 16.
Group family it is in is Oxygen Family.
The state of matter is Gas, It is a non-metal.
Everyone in this world can't live without oxygen, so the word "life" describes it all with oxygen on earth.
The whole atmosphere and earth is made of oxygen.
Many people need oxygen for their respiration. Like, the lack of oxygen.