51Sb121.76
Antimony
Metalloid · element 51 · group 15, period 5
Quick facts
| Symbol | Sb |
|---|---|
| Atomic number | 51 |
| Relative atomic mass | 121.76 |
| Category | Metalloid |
| Position | group 15, period 5 |
| State at 20 °C | Solid |
| Melting point | 630.6 °C |
| Boiling point | 1,587 °C |
| Density | 6.697 g/cm³ |
| Electronegativity | 2.05 |
| Electron configuration | [Kr] 4d10 5s2 5p3 |
About Antimony
Antimony has the symbol Sb and atomic number 51, which means every antimony atom has 51 protons in its nucleus and, in a neutral atom, 51 electrons. At room temperature it is a solid.
Metalloids have properties between metals and non-metals. Several, like silicon, are semiconductors used in electronics.
It melts at 630.6 °C and boils at 1,587 °C.
Explore it
See where antimony sits, and drag the temperature slider to watch it melt and boil, on the interactive periodic table. Practise with quizzes on OmniEx.