Atomic Structure Flashcards
1
Q
What do periods show?
Vertically along the side
A
Number of shells
2
Q
What do groups show?
Horizontal along the top
A
Number of electrons in outer shell
3
Q
What is an isotope
A
An element with the same number of protons but a different number of neutrons
4
Q
What is relative atomic mass?
A
The average mass of atoms of an element taking into account their abundance
5
Q
Atomic Number
A
Protons/Electrons
6
Q
Mass Number
A
Protons and Neutrons
