Quote:
Originally Posted by Ellahmae
[CENTER]120 is the atomic number of Unbinilium, an element yet to be discovered.... um, so how does it have a number assigned to it....
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That number is the number of protons in the nucleus, the atomic number. The atomic number defines the element. An atom is an atom of element 120 if and only if it has exactly 120 protons. So there is no difficulty in assigning it a number even before it has been discovered.
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