B
Boron Symbol (B)
Boron is element 5 of the periodic table. Copy its symbol B and see its atomic weight, electron configuration and common compounds.
What does B mean?
B is the chemical symbol for boron, element number 5 in the periodic table. Boron is a metalloid in group 13, period 2. It is a metalloid found in borax and boric acid and used in borosilicate glass.
Codes and properties
| Chemical symbol | B |
|---|---|
| Atomic number (Z) | 5 |
| Standard atomic weight | 10.81 |
| Group / period | 13 / 2 |
| Element category | metalloid |
| Electron configuration | 1s² 2s² 2p¹ |
| Common compounds | H₃BO₃, B₂O₃, Na₂B₄O₇ |
How to type B
- Plain text: type
B— element symbols are ordinary Latin letters, with the first letter capitalised. - Subscripts in formulas: use Unicode subscript digits (₀₁₂₃₄₅₆₇₈₉) for formulas such as H₃BO₃ — copy them from the chemistry keyboard.
- LaTeX: write
\mathrm{B}in math mode, or use the mhchem package:\ce{B}. - HTML:
B; for subscripts use<sub>, e.g.H<sub>2</sub>O.
Frequently asked questions
What is the chemical symbol for boron?
The chemical symbol for boron is B.
What is the atomic number of boron?
Boron has atomic number 5, meaning each atom has 5 protons.
What is the electron configuration of boron?
The ground-state electron configuration of boron is 1s² 2s² 2p¹.