history of the atoms quiz

Question 1

used cathode ray tubes

Answer 1

crookes and thomson

Question 2

electrons exist in orbits are energy levels

Answer 2

Bohr

Question 3

created first periodic table 

Answer 3

Mendeleev

Question 4

Our word “atom” comes from his word “atomos”

Answer 4

Democritus

Question 5

did not know about protons, neutrons or electrons 

Answer 5

dalton and democritus

Question 6

discovered neutrons

Answer 6

Chadwick

Question 7

plum pudding, model 

Answer 7

thomson

Question 8

periodic table based on atomic number

Answer 8

Moseley

Question 9

The atom is mostly empty space

Answer 9

Rutherford

Question 10

first person to think of atoms 

Answer 10

Democritus

Question 11

Gold foil experiment

Answer 11

rutherford

Question 12

discovered protons

Answer 12

goldstein

Question 13

all items have negatively negatively charged particles

Answer 13

crookes

Question 14

did not know about neutrons ( his model just included, protons and electrons )

Answer 14

thomson

Question 15

first unified atomic theory

Answer 15

dalton

Question 16

created modern periodic table 

Answer 16

moseley

Question 17

Calculated, the charge on an electron 

Answer 17

millikan

Question 18

The atom is invisible

Answer 18

dalton

Question 19

Periodic table based on atomic mass

Answer 19

mendeleev

Question 20

discovered nucleus

Answer 20

rutherford

Question 21

credited with discovering electrons

Answer 21

Thomson