Problem: There 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 (amu) Relative Size157.8360.2569159.8340.4999161.8320.2431Determine the average atomic mass of a bromine atom.
FREE Expert Solution
79Br81Br : mass = 159.834 amu
79Br79Br: mass = 157.836 amu
81Br81Br: mass = 161.832 amu
Problem Details
There 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 (amu) | Relative Size |
| 157.836 | 0.2569 |
| 159.834 | 0.4999 |
| 161.832 | 0.2431 |
Determine the average atomic mass of a bromine atom.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Mass Spectrometry concept. You can view video lessons to learn Mass Spectrometry. Or if you need more Mass Spectrometry practice, you can also practice Mass Spectrometry practice problems.