Compare elements
Put two to four elements side by side. The highest and lowest value in each row are marked.
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Put two to four elements side by side. The highest and lowest value in each row are marked.
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HighestLowestin each row
| Category | Reactive non-metal | Metalloid |
|---|---|---|
| Position | Group 14 · Period 2 · p-block | Group 14 · Period 3 · p-block |
| State at 25 °C | Solid | Solid |
| Atomic mass | 12.011 uLowest | 28.085 uHighest |
| Electronegativity | 2.55Highest | 1.90Lowest |
| First ionization energy | 1,086.5 kJ/molHighest | 786.5 kJ/molLowest |
| Electron affinity | 121.9 kJ/molLowest | 133.6 kJ/molHighest |
| Atomic radius | 70 pmLowest | 110 pmHighest |
| Covalent radius | 73 pmLowest | 111 pmHighest |
| Density | 2.267 g/cm³Lowest | 2.330 g/cm³Highest |
| Melting point | 3,823.0 KHighest | 1,687.0 KLowest |
| Boiling point | 4,098.0 KHighest | 3,538.0 KLowest |
| Electron configuration | [He] 2s2 2p2 | [Ne] 3s2 3p2 |
| Valency | 4 | 4 |
| Common oxidation states | −4, +4 | −4, +4 |
| Discovered | Known since antiquity | 1824 |
| Atomic model | ||
| Main uses | Not written yet | Not written yet |