Atomic History

Atomic History

1. Solid sphere model

   • The solid sphere was dicovered by John Dalton, n 1803, recovered acient greek atoms idea[the word atom comes from the greek world ´atomos´) His theory steted that atoms are indivisible, those given elements are identical, and compounds are combinations of diferent types of atoms.

2. Plum pudding model

   • Discovered by J.J Thomson discovered electrons, which he called corpuscles in 1897. Then he produced the plum pudding wich included an atom composed by electrons.

3. Nuclear model

   • Ernest Ruthenford positively charged alpha pa under a gold foil sheet. Some of the particles suffered a little deflection, but others deflected completely its angles. A new particle was created with deflected angles, negative charge and a nucleus with a positive nucleus.

4. Quantum Model

   • Erwin Schrodinger stated that electrons dont move in the same path around the nucleus but in waves.

5. Planetary Model

   • Niels Borh modified modified Ernest Ruthenfords model changing the negative electrons path by a sixsag to a circular path.