Structure of an atom-Paper 1 Flashcards
1
Q
Who were the main scientists to do with the discovery of atom structure?
A
John Dalton, J.J Thompson, Ernest Rutherford and Niels Bohr.
2
Q
What key things did John Dalton discover?
A
Atoms were indivisible, compounds were made up of at least 2 types of atom.
3
Q
What did J.J Thompson do?
A
Inventor of the plum pudding model. (electrons in positively charged matter) Discovered the existence of electrons.
4
Q
What did Ernest Rutherford do?
A
Proved Thompson’s plum pudding model WRONG.
5
Q
What did Niels Bohr discover?
A
That the electrons surround the nucleus of an atom in shells.
6
Q
Who was the first person to discover neutrons?
A
James Chadwick
