Boron (B) - 5 on the Periodic Table | Periodic Table

Standard IUPAC: Boron • Symbol: B • Atomic Mass: 10.81 u

Quick Factsheet: Boron (symbol B, atomic number 5) is element 5 on the periodic table of elements. It has a standard atomic weight of 10.81 u and an electron configuration of [He] 2s2 2p1. On the periodic table, Boron is classified in period 2 and group Main.

1. Periodic Table Position of Boron (5 on the Periodic Table)

Element Boron has atomic number Z = 5, meaning it contains 5 protons in its atomic nucleus and 5 electrons in its neutral state. On the standard periodic table of elements, Boron is located in period 2 and group Main.

2. Electron Configuration & Oxidation States (Boron Charges & Configuration)

Full Electron Configuration: [He] 2s2 2p1

Common Oxidation States (Charges): 1,2,3c

3. Physical Properties & Atomic Mass (Boron Atomic Mass)

Element Boron has a standard atomic weight of 10.81 u. Its melting point is 2348. K and boiling point is 4273. K. The Pauling electronegativity value is 2.04.

Comprehensive chemical properties and data for Boron (B, Z=5).

Explore interactive 3D electron orbitals, isotopes, and properties on the periodic table: Open on Interactive Table 🚀

4. Related Elements in the Same Chemical Family

Si (Z=14) Ge (Z=32) As (Z=33) Sb (Z=51) Te (Z=52) At (Z=85)

5. Frequently Asked Questions about Boron (FAQ)

What is the chemical symbol and atomic number of Boron?

The chemical symbol of Boron is B and its atomic number is 5.

What is the atomic mass and electron configuration of Boron?

Boron has a standard atomic mass of 10.81 u and ground-state electron configuration of [He] 2s2 2p1.

What periodic table group and period does Boron belong to?

Boron is located in period 2 and group Main on the periodic table of elements.

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