8
O
Oxygen
15,999 u
Oxygen
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Periode
2
Gruppe
16
Block
p-Block
Phase (STP)
Gas
Oxygen is the third most abundant element in the universe and essential for respiration. It makes up about 21% of Earth's atmosphere.
Erscheinungsbild: Colorless gas (pale blue as liquid)
Compounds Containing Oxygen
Mehr Nichtmetall
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Frequently Asked Questions
What is Oxygen?
Oxygen (O) is a chemical element with atomic number 8. It is a gas at standard temperature and pressure, classified as a nichtmetall.
What are the key properties of Oxygen?
Oxygen has an atomic mass of 15.999 u, density of 0.001429 g/cm³, melting point of -218.8°C, boiling point of -183.0°C.
What is the electron configuration of Oxygen?
The electron configuration of Oxygen is [He] 2s2 2p4. It is in the p-block of the periodic table.
Who discovered Oxygen?
Oxygen was discovered by Carl Wilhelm Scheele in 1771.
What is the electronegativity of Oxygen?
Oxygen has an electronegativity of 3.44 on the Pauling scale.