Boron (B), element 5 – Learn Acer periodic table

Boron is a metalloid chemical element with symbol B and atomic number 5. Produced entirely by cosmic ray spallation and supernovae and not by stellar nucleosynthesis, it is a low-abundance element in both the Solar system and the Earth's crust. Boron is concentrated on Earth by the water-solubility of its more common naturally occurring compounds, the borate minerals.

Symbol B. Atomic mass 10.81 u. Group 13, period 2. Electron configuration [He] 2s2 2p1. Electrons per shell 2, 3. State at room temperature: Solid. Melting point 2075.8 °C, boiling point 3926.8 °C. Discovered by Joseph Louis Gay-Lussac.

Element data from Wikipedia, CC BY-SA 3.0.

Boron (B), element 5 – Learn Acer periodic table

Boron

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