something Flashcards
1911
Rutherford’s Model
Rutherford’s Model
He proposed that the most of an atoms mass was in the center. He also did the gold foil experiment which discovered the nucleus and that atoms have a electric charge in 1911.
1858
Cathode Ray Experiment
Cathode Ray Experiment
J.J. Thomson did experiments with electrical current that suggested that atoms had negatively charged particles in 1958.
1897
JJ Thomson model
JJ Thomson model
He did experiments using electricity that suggested that atoms weren’t invisible in 1897.
The plum pudding model
JJ Thomson did experiments that discovered electrons. The model showed atoms having positive and negative charges in 1904.
1904
The plum pudding model
Dalton Atomic theory
Like the first atomic theory he believed that atoms could not be separated. He also believed atoms of the same element looked that same and that atoms of different elements could join together and form compounds in 1808.
1808
Dalton Atomic theory
Who proposed that the most of an atoms mass was in the center.
Rutherford’s Model
Who did experiments with electrical current that suggested that atoms had negatively charged particles in 1958.
Cathode Ray Experiment
Who did experiments using electricity that suggested that atoms weren’t invisible in 1897.
JJ Thomson model
Who did experiments that discovered electrons. The model showed atoms having positive and negative charges in 1904.
The plum pudding model
Who believed atoms of the same element looked that same and that atoms of different elements could join together and form compounds in 1808.
Dalton Atomic theory
