Basic Information about Boron
– Chemical element with symbol B
– Atomic number 5
– Metalloid with properties of both metals and non-metals
– Found in chemical compounds in its ore borax
– Never found free in nature
Allotropes of Boron
– Two types of boron: amorphous and metallic (crystalline)
– Amorphous boron is a brown powder
– Metallic boron is black, hard, and a weak conductor at room temperature
– Boron is the 5th element in the periodic table
– Boron is part of the Earth’s surface
Uses of Boron
– Used as a dopant in the semiconductor industry
– Chemical compounds of boron are used to make strong and lightweight materials
– Boron compounds are used as nontoxic insecticides and preservatives
– Important for chemical synthesis
– Essential for the growth of plants and animals in small amounts
Discovery of Boron
– Discovered by Sir Humphry Davy, an English chemist, in 1808
– Davy conducted analytical research on boron compounds
– Boron was isolated from borax
– Boron was named after the mineral borax
– Davy’s research contributed to the understanding of chemical theory
Interesting Facts about Boron
– Melting point of boron: 2075°C (3767°F)
– Boiling point of boron: 4000°C (7232°F)
– Standard atomic weight of boron: [10.806, 10.821]
– Boron has oxidation states of -5, -1, 0, +1, +2, and +3
– Boron has a Mohs hardness of approximately 9.5Sources: https://simple.wikipedia.org/wiki/Boron
