The Basics
Name-Bromine
Symbol-Br
Atomic Number-35
Element Category-diatomic nonmetal
Average Atomic Mass-79.904
Group-17
Group name-Halogen
Period-4
Block-P
State at STP-liquid
Density-3.1028gxcm^-3
Melting Point-265.8 K, -7.2 degrees Celsius, 19 degrees Fahrenheit
Boiling Point-332.0 K, 58.8 degrees Celsius, 137.8 degrees Fahrenheit
Common Isotopes-79Br and 81Br
Electron Configuration-[Ar]4s^2 3d^10 4p^5
Number of Valence Electrons-7
Atomic radius-120 pm
Electronegativity-2.96 (Pauling scale)
Oxidation states-7, 5, 4, 3, 1, -1
Name-Bromine
Symbol-Br
Atomic Number-35
Element Category-diatomic nonmetal
Average Atomic Mass-79.904
Group-17
Group name-Halogen
Period-4
Block-P
State at STP-liquid
Density-3.1028gxcm^-3
Melting Point-265.8 K, -7.2 degrees Celsius, 19 degrees Fahrenheit
Boiling Point-332.0 K, 58.8 degrees Celsius, 137.8 degrees Fahrenheit
Common Isotopes-79Br and 81Br
Electron Configuration-[Ar]4s^2 3d^10 4p^5
Number of Valence Electrons-7
Atomic radius-120 pm
Electronegativity-2.96 (Pauling scale)
Oxidation states-7, 5, 4, 3, 1, -1