What atom does not have any neutrons?

1 Answer
anor277
Nov 5, 2016

The protium ""^1H isotope.

Explanation:

Most atoms in this universe are this isotope. The nucleus of the ""^1H isotope contains a single, massive, positively charged particle, and hence its mass -= "1 amu".

Of course, deuterium, ""^2H, and tritium, ""^3H, isotopes are also known. How many neutrons are found in these atoms?

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