Scientists in Chem

Question 1

JJ Dalton

Answer 1

used cathode ray to determine that atoms were made up of electrons - charge to mass ratio

Question 2

Robert Millikan

Answer 2

Measured charge of an electron, measured in columbs

Question 3

Ernest Rutherford

Answer 3

used gold foil experiment to determine that atoms were made up of protons

Question 4

James Chadwick

Answer 4

Used the gold foil experiment to determine that atoms were made up of protons (more modern)

Question 5

Halogens that have a 2 with them if they’re listed as a gas

Answer 5

H, N, O, F , Cl, Br, I