How many protons and neutrons are in the nuclide? #Rn^219_86#

1 Answer
anor277
May 16, 2018

Surely you can do this now?

Explanation:

What is #Z# for radon? Look up your Periodic Table, and it is the main group element on the bottom right of the main block.... As always the sum of the massive particles gives the isotopic mass...

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