Fundamental Particles Flashcards
1
Q
Plum pudding model
A
Sphere of positive charge with small negative charges distributed evenly within it
2
Q
Electron shell model description
A
Small dense central nucleus surrounded by orbiting electrons in electrons shells
3
Q
What experiment led to the electron shell model discovery
A
Rutherford scattering experiment in 1911
4
Q
What is the nucleus consisted of and what’s it’s overall charge
A
It’s consisted of protons and neutrons giving it an overall positive charge
5
Q
In neutral atoms what must be equal
A
Number of protons and electrons
6
Q
Give the relative mass of protons neutrons and electrons
A
Proton 1
Neutron 1
Electron 1/1840
7
Q
What is used to work out the maximum number of orbiting electrons that can be held by a single shell
A
2n^2 where n= number of that shell
