Question

Sort these six events from the earliest to the most recent. Democritus proposes the existence of atoms- Dalton's atomic theory- J.J.Thomson discovers the electron- Rutherford's gold foil experiment-Bohr model- or Schrodinger's wave

Answer 1

These events are actually sorted right, according to the time they occurred.
1. Democritus proposes the existence of atoms - this happened in the 5th century BC
2. Dalton's atomic theory - it was first presented in 1803
3. J.J. Thomson discovers the electron - happened in 1897
4. Rutherford's gold foil experiment - somewhere between 1908 and 1913
5. Bohr model - it was introduced in 1913
6. Schrodinger's wave - the equation was published in 1925