Basic Information

Name: Bromine 
Symbol: Br 
Atomic Number: 35 
Atomic Mass: 79.904 amu 
Melting Point: -7.2 °C (265.95 K, 19.04 °F) 
Boiling Point: 58.78 °C (331.93 K, 137.804 °F) 
Number of Protons/Electrons: 35 
Number of Neutrons: 45 
Classification: Halogen 
Crystal Structure: Orthorhombic 
Density @ 293 K: 3.119 g/cm3 
Color: Red
Date of Discovery: 1826 
Discoverer: Antoine J. Balard 
Name Origin: From the Greek word brômos (stench) 
Uses: Poisonous 
Obtained From: Sea Water