1. By Brittany Perry and Nikita marlin

3. Element symbol B

4. Atomic mass 10.811

7. The family name is: The boron family

8. Who discovered boron and when Sir Humphrey Davy and J.L Gay-Lussac in 1808

9. How is boron used Boron is used in pyrotechnics and flares to produce a green color. Boron has also been used in some rockets as an ignition source. Boron is a good absorber and is used in the control rods of nuclear reactors, as a radiation shield and as a neutron detector. Boron filaments are used in the aerospace industry because of their high-strength and lightweight.

10. facts Element Classification: Semi-metal Ionization Energy: 8.298 eV (chemical) Estimated Crustal Abundance: 1.0×10 1 milligrams per kilogram (physical) Crystal Structure: Rhombohedral (physical) Density 293 Kilagroams : 2.34 grams/cm3 (physical) Boiling Point: 2550.0 °C - 2823.15 °K (physical) Melting Point: 2300.0 °C - 2573.15 °K (physical)

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