Who suggested the universe was made up of individual units?
100
Dalton
Who said all atoms of a different element are alike
100
Electron
What is a subatomic particle with a negative charge
200
The first theory of atoms
What was proposed more than 2,000 years ago?
200
Dalton used experimental evidence
Who used experimental evidence
200
The plum pudding model of an Atom
What is Thompson's model of the Atom?
300
Democritus did'nt have evidence
Who didn't have evidence for his theories?
300
It was created by Rutherford.Rutherford used it to discover the nucleus.
what is the gold foil experiment
300
The locations of electrons are found in its orbitals. It's electrons act like waves and particles.
What is the modern model of the atom
400
A Greek philosopher who had a lack of experimental evidence and thought the universe was made of indivisible atoms
Who is Democritus?
400
Hydrogen is 11% of H2O
What is 11% of H2O
400
The anode because the cathode the cathode has a negative charge
What is The positively charged and of the cathode-ray?
500
He used experimental evidence and thought that all atoms of a given element were identical. He thought atoms of different elements could join to form compounds,and that atoms are small, dense , spheres.
Who is Dalton
500
It was discovered by Thompson who worked with the cathode ray and discovered that the ray was made up of negatively charged particles.