Cristina Flores


It comes from the greek words oxys and genes, which together mean "acid forming."

It's atomic number is 8 and is a non-metal.


% abundance on Earth: 46.1%

Oxygen makes up around 21% of the air you breathe. It is also the most common element in the Earth’s crust and the third most common element in the Universe. The gas is colorless, orderless, and tasteless.

Interesting Facts!

  • Oxygen was the atomic weight standard for the other elements until 1961 when it was replaced by carbon 12.
  • Approximately 2/3 of the mass of the human body is oxygen.
  • Excited oxygen is responsible for the bright red and yellow-green colors of the aurora.