Concept explainers
The element rubidium has two naturally occurring isotopes. The atomic mass of 85Rb (72.17 percent abundant) is 84.911794 amu. Determine the atomic mass of 87Rb (27.83 percent abundant). The
Interpretation:
The atomic mass of
Concept introduction:
Atomic mass is the total material present in one atom of an element. Namely,
- (1) Protons
- (2) Electrons
- (3) Neutrons
The Average atomic mass of an element can be calculated by using given formula,
To find: The atomic mass of
Answer to Problem 2.38QP
The atomic mass of
Explanation of Solution
The atomic mass of
The atomic mass of
Multiplying the mass of an isotope by its fractional abundance will give the contribution to the average atomic mass of that particular isotope.
The atomic masses of
The atomic mass of
Conclusion
The atomic mass of
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Chapter 2 Solutions
Chemistry: Atoms First
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