Atomic Sturcture Flashcards
1
Q
Mass Number
A
Protons + Neutrons
2
Q
Atomic Number
A
Number of protons (and electrons but can change if ionic)
3
Q
Atomic mass vs atomic weight
A
Atomic mass: Varies between isotopes
Atomic weight: weighted average of all the isotopes: constant
4
Q
Bhor Model
A
Energy is quantisized
E= hf
h=v/wavelength
f= c/wavelength
5
Q
Max number of electrons in a shell
A
2n^2
6
Q
Max electrons in subshell
A
4l+2
