What is the average of atomic masses of lithium and potassium?
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The atomic mass of lithium is 7 and the atomic mass of potassium is 39. The average of masses of lithium and potassium gives atomic mass of sodium 23.
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Explanation:
The atomic mass of lithium is 6.9...and the atomic mass of potassium is 23...but the average atomic mass of both lithium and potassium is 46÷2=23...
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