2. Atoms & Elements
Rutherford Gold Foil Experiment
Problem 98b
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 (a) What is the origin of second (mass of 159.834 amu) peak (of what isotopes does each consist)?
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