chapter 6 - important scientists Flashcards
1
Q
what did democritus do
A
came up w theory that all matter is made of atoms which are invisible
2
Q
what did dalton do
A
proved all elements are made of atoms
3
Q
what did thompson do
A
proved all atoms are made of positive and negative charged particles
4
Q
what did rutherford do
A
discovered nucleus
5
Q
what did bohr do
A
defined electron orbits around the nucleus
6
Q
what did chadwick do
A
discovered the neutron
