The modern periodic table lists all the elements in order of what?

1 Answer
May 12, 2017

Answer:

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Explanation:

The modern Periodic Table uses #"atomic number"#, #Z#, as the defining criterion. And #Z# specifies the number of protons, massive, positively charged particles, present in the nucleus. #Z=1#, the element is hydrogen; #Z=2#, the element is helium; #Z=3#, the element is lithium;...................#Z=22#, the element is titanium.

Do you have to remember these numbers?