Answer to Question #17583 in Chemistry for ericka

Question #17583
what number uniquely identifies an element
1
Expert's answer
2012-10-30T11:57:07-0400
Proton number.
It corresponds to element N in Periodic table.
E.g. Li has 3 protons. (№3)
& Н has 1 proton (№1)
& P has 15 protons (№15)

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