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Oxygen
Oxygen is the 8th element in the periodic table, it is a tasteless and odorless gas, and it is necessary for the survival of living organisms in the world.
Who discovered it:Joseph Priestly, Carl Wilhelm Scheele
When was it discovered:1774
Symbol:O
Group:6
Row:2
Number of Protons(+):8
Number of Neutrons:8
Number of Electrons(-):8
Atomic Mass: 15.9994 u ± 0.0004 u
Electron Configuration:[He]2s 2p
2
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