🔬 Science & Nature #73
Elements 11–20 on the periodic table — answers & sources
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Top 10 most common elements in the human body
Daily Tens #55 · Sunday, September 6, 2026 · Ranked by share of total body mass
Heads up: the answers are published further down this page.
The answers
- 1 Oxygen
- 2 Carbon
- 3 Hydrogen
- 4 Nitrogen
- 5 Calcium
- 6 Phosphorus
- 7 Potassium
- 8 Sulfur
- 9 Sodium
- 10 Chlorine
Ranking method
- Metric
- Share of total body mass
- Data through
- Standard reference values
- Source
- CRC Handbook of Chemistry and Physics
- Notes
- By mass. Ranked by number of atoms instead, hydrogen comes first.
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