Boron:

Boron was discovered by Joseph Gay-Lussac and Louis Thénard, French chemists, and independently by Sir Humphry Davy, a British chemist, in 1808
Boron is a hard, brittle semi_metallic element.

Chemical Symbol : B
Atomic number : 5
Atomic weight : 10.81
Melting Point : 2348 K
Boiling Point : 4273 K