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Li, Na and K is a Dobereiner's triad. Th...

Li, Na and K is a Dobereiner's triad. The atomic masses of Li and K are 7 and 39 respectively. What is the expected mass of Na?

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To find the expected atomic mass of sodium (Na) in the Dobereiner's triad consisting of lithium (Li), sodium (Na), and potassium (K), we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Given Values:** - Atomic mass of Lithium (Li) = 7 - Atomic mass of Potassium (K) = 39 ...
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