Question

matching:
a) democritus
b) dalton
c) rutherford
d) thomson

1. famous for gold foil experiment during which he discovered the nucleus
2. english school teacher that began developing modern atomic theory
3. ancient greek philosopher who first proposed idea of an atom
4. discovered the electron and developed the plum pudding model of the atom

Explanation:

18.

Rutherford conducted the gold foil experiment and discovered the nucleus.

John Dalton, an English school teacher, developed modern atomic theory.

Democritus, an Ancient Greek philosopher, first proposed the idea of an atom.

Answer:

C) Rutherford

19.