What is HYDROGEN and OXYGEN?

Hydrogen is the first element in the periodic table. Oxygen is the eighth element in the periodic table.

Both elements are gases.

Hydrogen is used for the Haber process and rocket fuel.

Oxygen is used for breathing and production purposes.

Air composes 21% oxygen and 0.0001% hydrogen.

Water is an example that contains both hydrogen H2 and oxygen O2 molecules.

Hydrogen is the chemical element with the Symbol H and atomic number 1.

Hydrogen is the lightest element in the periodic table and it is the most abundant in the universe.

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Oxygen is the chemical element with the symbol O and the atomic number 8.

It is a member of the chalcogen group in the periodic table.

This is what we humans take in to breathe that gives us life.

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