9 chemistry ch 4

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1. 
What is the atomic mass of lithium's

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2. 
What is the atomic mass of sodium?

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3. 
What is the atomic mass of potassium?

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4. 
What is the atomic mass of chlorine?

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5. 
What is the atomic mass of bromine ?

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6. 
What is the atomic mass of iodine ?

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7. 
When was Mendeleev table presented ?

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