Identify all scientists in chronological order that were involved in defining the atom?

Answer 1

The term goes back a ways- scientifically, to a man named Democritus, he thought of the term we use today (atom), though it is spelled different in his native language of Greek. John Dalton had his own theory on atoms, though the first model was developed by J.J Thompson. The way I remember it is to think of choclate-chip ice cream. He proposed there being one large particle with smaller negative particles throughout. Often, it is referred to as the plum pudding model. Next was a man named Ernest Rutherford, who furthered the discovery of atoms in his gold foil experiment. Niels Bohr, who I believe knew Rutherford, made the model of orbitral rings. Our technology, especially in the mid and late 1900's has allowed us to complete this model accurately.

Answer 2

1. John Dalton - Proposed the modern atomic theory in the early 19th century.
2. J.J. Thomson - Discovered the electron in 1897, leading to the plum pudding model of the atom.
3. Ernest Rutherford - Conducted the gold foil experiment in 1911, leading to the discovery of the atomic nucleus.
4. Niels Bohr - Developed the Bohr model of the atom in 1913, incorporating quantized energy levels.
5. Erwin Schrödinger - Formulated the quantum mechanical model of the atom in the 1920s.

Answer 3

I only know four but hopefully this helps! Rutherford, Dalton, Thomson, and Borh.

Answer 4

john dalton and ernest rutherford