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1 Nov 2021
Given information
Here the given information is:
Two naturally occurring isotopes of lithium are and .
The natural abundance of is % and that of is %
We have to find out the number of atoms on average in a -atom sample of lithium.
Step-by-step explanation
Step 1.
Isotopes can be defined as atoms that have the same atomic number but different mass numbers.
Since isotopes have the same atomic number, they have the same number of protons and electrons. The difference in their mass numbers arises because they contain different numbers of neutrons in their nuclei.
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