How are elements classified?

1 Answer
anor277
Aug 18, 2016

By their atomic number, #Z#.

Explanation:

#Z# defines elemental identity. If #Z=1# the element is hydrogen; if #Z=2# the element is helium;.........If #Z=46# the element is palladium. From where am I getting these numbers? Did I know them from memory?

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