2. Atoms & Elements
Rutherford Gold Foil Experiment
2:47 minutes
Problem 98c
Textbook Question
Textbook QuestionThere are two different isotopes of bromine atoms. Under normal conditions, elemental bromine consists of Br2 molecules, and the mass of a Br2 molecule is the sum of the masses of the two atoms in the molecule. The mass spectrum of Br2 consists of three peaks: Mass (u) Relative Size 157.836 0.2569 159.834 0.4999 161.832 0.2431 (c) Determine the average molecular mass of a Br2 molecule.
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