Warm Up9-4-15 1.Silicon (Si) has 14 protons how many electrons are in Si? 2.What was the outcome of the gold foil experiment? 3.Which subatomic particles.
1 The Atom, in a nutshell…. 2 Democritus (c. 460—370 BC) Greek philosopher The name atom was his idea Proposed matter is made up of small particles.
Matter, Atoms, Elements
