Atomic Sturcture

Question 1

Mass Number

Answer 1

Protons + Neutrons

Question 2

Atomic Number

Answer 2

Number of protons (and electrons but can change if ionic)

Question 3

Atomic mass vs atomic weight

Answer 3

Atomic mass: Varies between isotopes

Atomic weight: weighted average of all the isotopes: constant

Question 4

Bhor Model

Answer 4

Energy is quantisized
E= hf
h=v/wavelength
f= c/wavelength

Question 5

Max number of electrons in a shell

Answer 5

2n^2

Question 6

Max electrons in subshell

Answer 6

4l+2