Particle Numbers - 3.2.1 Flashcards
1
Q
What is an atomic number?
A
The number of protons
2
Q
What is a mass number?
A
Number of protons and neutrons
3
Q
What is an isotope?
A
Atoms with the same number of protons but different numbers of neutrons
4
Q
What is relative atomic mass and how is it calculated?
A
The relative atomic mass of an element is the ratio of the average mass of the atoms of an element to the unified atomic mass unit
Relative atomic mass = (mass x abundance) + (mass x abundance) / total abundance
