| A | B |
|---|
| Democritus | Coined the word atom, meaning indivisible |
| John Dalton | English chemist, 1803- compounds are formed by joining 2 or more elements. |
| J.J. Thomson | atoms are made of pudding-like + charged material throughout - charged electrons are scattered. Plums in pudding |
| Ernest Rutherford | English physicist- 1903- discovered a + charged nucleus with electrons scattered outside of the nucleus |
| Niels Bohr | Danish scientist- 1913- discovered that electrons are in energy levels that are at certain distances from the nucleus |
| The Wave Model | atoms have a small + charged nucleus surrounded by a large region where there are enough electrons to make atom neutral |
| Won 1906 Nobel Prize | JJ Thomson for discoverng the electron |
| Was coloredblind & investigated it | Dalton- "Daltonism" |
| Recieved the 1st Atoms for Peace in 1957 through his research of peaceful uses of nuclear energy | Bohr |
