Chemistry ch 4 problems represent naatomic no.11 n mass no.23
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name of element = sodium ( Na )
atomic number of element (Z) = 11
mass number of element (A) = 23
representation of element sodium= ²³Na↓11
atomic number of element (Z) = 11
mass number of element (A) = 23
representation of element sodium= ²³Na↓11
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