How much does a carbon atom weigh?
1.99 × 10⁻²⁶ kgWhich one: 1.99 × 10⁻²⁶ kg
A carbon atom has a mass of about 1.99 × 10⁻²⁶ kg.
Atomic masses converted to kilograms, for the very smallest puzzles.
How heavy is that?
- A carbon atom weighs about as much as 12 hydrogen atoms.
- A carbon atom weighs about as much as 22,000 electrons.
About the same weight
More atoms
- Proton 1.67 × 10⁻²⁷ kg
- Hydrogen atom 1.67 × 10⁻²⁷ kg
- Helium atom 6.65 × 10⁻²⁷ kg
- Oxygen atom 2.66 × 10⁻²⁶ kg
- Water molecule 2.99 × 10⁻²⁶ kg
- Iron atom 9.27 × 10⁻²⁶ kg
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