This chart ranks the ten densest chemical elements by their density at room temperature, measured in grams per cubic centimetre. Osmium and iridium are the two densest naturally occurring elements, both more than twice as dense as lead.
About: Densest Chemical Elements
Overview of the data behind this chartAI Insight
Osmium (22.59 g/cm3) and iridium (22.56 g/cm3) are the densest elements known, so close that historically it was disputed which held the record. Both are more than twice as dense as lead (about 11.3 g/cm3) and cluster tightly with platinum (21.45) and rhenium (21.02) at the top. A recurring theme is that the densest elements are heavy transition metals and actinides packed into compact crystal structures. After rhenium the values step down through neptunium and plutonium into a group near 19 g/cm3 that includes gold, tungsten and uranium, three very different elements with nearly identical density. Tantalum, at 16.69 g/cm3, closes the top ten but is already noticeably lighter than the leaders.
Key Findings
Auto-computed highlights from this datasetChart Controls Customize your visualization
Densest Chemical Elements
Data Insights
Numbers, trends & sources behind this chartCategory Rankings
Density (g/cm3) · All Time| # | Category | All Time |
|---|---|---|
| 🥇 | Osmium | 22.59 |
| 🥈 | Iridium | 22.56 |
| 🥉 | Platinum | 21.45 |
| 4 | Rhenium | 21.02 |
| 5 | Neptunium | 20.45 |
| 6 | Plutonium | 19.85 |
| 7 | Gold | 19.30 |
| 8 | Tungsten | 19.25 |
| 9 | Uranium | 19.05 |
| 10 | Tantalum | 16.69 |
What This Data Shows
Auto-generated trend summaries per categoryFull Data Table
10 records across 1 yearData Sources & References
All external sources cited in this datasetRelated Charts
Lightest Metals by Density Related Chart
Heaviest Naturally Occurring Elements by Atomic Mass Related Chart
Most Electronegative Chemical Elements Related Chart
🎨 Create Your Own Charts!
Transform your data into beautiful, interactive visualizations. No account required - start creating stunning charts in seconds!