What is the mass of an atom that contains two positively charged nuclides, and two neutrally charged nuclides? What is the atom?

1 Answer
anor277
Jul 21, 2017

Well, the conventional helium NUCLEUS comprises 4 massive particles.....

Explanation:

Atomic mass is to a very good first approx. NUCLEAR mass, i.e. the number of massive nuclear particles. The helium nucleus has 2 protons, 2 positively charged, massive particles, #Z=2#, and this is what defines the nucleus as helium. The common helium isotope also contains 2 neutrons to give #""^4He#. Capisce?

Related questions
See all questions in Mass Number
Impact of this question
1750 views around the world
You can reuse this answer
Creative Commons License