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?

Related questions
See all questions in Everything is Made of Atoms
Impact of this question
2137 views around the world
You can reuse this answer
Creative Commons License