Register
What is the mass number of an isotope
128k views
2 votes
What is the mass number of an isotope

User Ornj
by
7.1k points

2 Answers

4 votes
The mass number given on the periodic table is a weighted average of all the isotopes. You get the exact mass of an isotope by adding the protons(atomic number) to the number of neutrons in that isotope.
User Paulo Amaral
by
6.4k points
4 votes
The number of nucleons in the nucleus is the atom's mass number, that being said, each isotope of a given element has a different mass number. so there isn't one single mass number for an isotope.
User Timroman
by
7.2k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

7.8m questions

10.5m answers

Other Questions

Compare and contrast an electric generator and a battery??
How do you balance __H2SO4 + __B(OH)3 --> __B2(SO4)3 + __H2O
Can someone complete the chemical reactions, or write which one do not occur, and provide tehir types? *c2h4+h2o *c3h8 + hcl *c2h2+br2 *c4h10+br2 *c3h6+br2
Why is gold preferred as a superior metal over silver and bronze?
What is the evidence of a chemical reaction when the fireworks go off
Link Copied!