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Questions and Answers
What is the atomic number of oxygen?
What is the molecular formula of oxygen?
What is the percentage of oxygen-16 in natural abundance?
What is the boiling point of oxygen?
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What is the solubility of oxygen in water?
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Study Notes
Atomic Composition of Oxygen
- Atomic number: 8
- Atomic mass: 15.9994 g/mol
- Electron configuration: 1s² 2s² 2p⁴
- Number of protons: 8
- Number of neutrons: 8 (in the most abundant isotope, oxygen-16)
Molecular Composition of Oxygen
- Molecular formula: O₂
- Molecular mass: 31.9988 g/mol
- Bond type: Covalent double bond
- Bond length: 121 pm (picometers)
- Bond energy: 498 kJ/mol
Isotopes of Oxygen
- Oxygen-16 (99.757% natural abundance)
- Oxygen-17 (0.038% natural abundance)
- Oxygen-18 (0.205% natural abundance)
Properties of Oxygen
- Colorless, odorless, tasteless gas
- Boiling point: -182.96°C
- Melting point: -218.79°C
- Density: 1.429 g/l at 20°C and 1 atm
- Solubility in water: 0.031 mL/mL at 20°C and 1 atm
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Description
Test your knowledge of oxygen's atomic and molecular structure, isotopes, and properties. Learn about oxygen's electron configuration, molecular formula, bond type, and physical properties such as boiling and melting points.
