6. PhySci Reviewer Flashcards
Philosopher who proposed the idea of atoms
Democritus
What did Democritus call atoms?
atomos
How did John Dalton describe atoms?
Solid Sphere
What did John Dalton distinguish the difference between?
Elements and Compounds
What was J.J Thomson’s model?
Plum pudding model
in the plum pudding model, electrons were?
scattered
who was the proponent for the nuclear model?
ernest rutherford
how was the nucleus charged?
positively charged
who suggested that the electrons orbited the nucleus?
niels bohr
electrons occupy particular ________ around the nucleus of an atom
orbits or shells
he discovered that atoms have mass
ernest rutherford
what gives the weight in the atom?
nucleus
who discovered neutrons
james chadwick
who said that atoms are indivisible?
democritus
who proposed the atomic theory
john dalton
