Atomic Theory

Question 1

The _____ is the positive particle found in an atom.

Answer 1

proton

Question 2

The electron has a _____ charge.

Answer 2

negative

Question 3

The _____ is the particle in the atom with no charge.

Answer 3

neutron

Question 4

_____ discovered indivisible particles.

Answer 4

Dalton

Question 5

_____ discovered the electron.

Answer 5

Thomson

Question 6

_____ discovered the nucleus.

Answer 6

Rutherford

Question 7

_____ discovered the neutron.

Answer 7

Chadwick

Question 8

_____ discovered the proton.

Answer 8

Rutherford

Question 9

_____ placed electrons in energy levels.

Answer 9

Bohr

Question 10

The _____ model states the atom is a positive sphere with randomly scattered negative particles.

Answer 10

plum pudding

Question 11

The _____ model states the atom has a positive center with electrons placed in fixed paths.

Answer 11

planetary

Question 12

The _____ model states the atom has a positive center with negative particles scattered randomly throughout.

Answer 12

nuclear

Question 13

The _____ model states the atom has a positive center with negative particles moving randomly and very quickly within energy levels.

Answer 13

electron cloud

Question 14

_____ believed matter was composed of fire, air, water, and earth.

Answer 14

Aristotle

Question 15

_____ was the first person to use the word atom.

Answer 15

Democritus

Question 16

The electron cloud model is also known as the _____ atomic theory.

Answer 16

modern

Question 17

_____ was the first person to have positive and negative charges within the atom.

Answer 17

Thomson

Question 18

_____ discovered the atom is mostly empty space.

Answer 18

Rutherford

Question 19

_____ believed in continuous matter.

Answer 19

Aristotle

Question 20

_____ discovered electrons move rapidly creating a blurry “cloud”.

Answer 20

Schrodinger

Question 21

_____ discovered the first subatomic particle.

Answer 21

Thomson

Question 22

The _____ model is the first to have a nucleus.

Answer 22

nuclear

Question 23

The _____ model is the first to have energy levels.

Answer 23

planetary

Question 24

The _____ model is the first to have neutrons.

Answer 24

electron cloud

Question 25

The _____ model had no particles inside.

Answer 25

solid sphere

Question 26

The _____ model was the first to have positive and negative particles inside.

Answer 26

nuclear

Question 27

The _____ model was the first to have 3 subatomic particles.

Answer 27

electron cloud model

Question 28

What is the name of Rutherford's atomic model?

Answer 28

nuclear model

Question 29

What is the name of Dalton's atomic model?

Answer 29

solid sphere model

Question 30

What is the name of Schrodinger's atomic model?

Answer 30

electron cloud model

Question 31

What is the name of Thomson's atomic model?

Answer 31

plum pudding model

Question 32

What is the name of Bohr's atomic model?

Answer 32

planetary model

Question 33

Place the following models in chronological order: planetary model, electron cloud model, plum pudding model, solid sphere model, nuclear model

Answer 33

1. solid sphere model 2. plum pudding model 3. nuclear model 4. planetary model 5. electron cloud model

Question 34

What is the name of this model?

Answer 34

nuclear model

Question 35

What is the name of this model?

Answer 35

electron cloud model

Question 36

What is the name of this model?

Answer 36

plum pudding model

Question 37

What is the name of this model?

Answer 37

planetary model

Question 38

What is the name of this model?

Answer 38

solid sphere model