Fundamental particles Flashcards
1
Q
Describe the plum pudding model
A
Before the discovery of protons and neutrons
Ball of positive charge with negative electrons embedded in it
The charges are widely spread
2
Q
Describe bohrs model
A
Most of the atom is empty space
Charges are concentrated in the nucleus
Electrons are present in the shell
3
Q
What is the charge and relative mass of protons, electrons and neutrons?
A
Proton +1, 1
Electron -1, 1800
Neutron 0,1
