Bromine Mass Number

››More information on molar mass and molecular weight. In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all. Bromine weighs 3.104 gram per cubic centimeter or 3 104 kilogram per cubic meter, i.e. Density of bromine is equal to 3 104 kg/m³; at 25°C (77°F or 298.15K) at standard atmospheric pressure. In Imperial or US customary measurement system, the density is equal to 193.7764 pound per cubic foot lb/ft³, or 1.7942 ounce per cubic inch oz. Photoshop cs3 authorization code generator. The atomic mass is a weighted average that reflects the natural abundance of an elements stable isotopes. So using it as a means of determining the number of neutrons, you get the average number of neutrons in that element. Because bromine's two isotopes 79 and 81 are of similar abundance the atomic mass is near 80. Isotopes of Bromine (click to see decay chain): 67 Br 68 Br 69 Br 70 Br 71 Br 72 Br 73 Br 74 Br 75 Br 76 Br 77 Br 78 Br 79 Br 80 Br 81 Br 82 Br 83 Br 84 Br 85 Br 86 Br. Star wars movie duels mod.

Bromine-81 Mass Number