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Question 1

Suggested that matter is made up of atoms

Answer 1

Dalton

Question 2

Proposed that atoms contain negatively harmed particles called electrons

Answer 2

Thomson

Question 3

Discovered the nucleus and its subatomic particles.

Answer 3

Rutherford

Question 4

Suggested that the nucleus was made up of positively charged particles called Protons and particles with no charge called neutrons

Answer 4

Rutherford

Question 5

Proposed that electrons are located in shells around the nucleus

Answer 5

Bohr

Question 6

Subatomic particles

Answer 6

All atoms are made up of 3 subatomic particles: protons, neutrons, electrons

Question 7

Proton charge

Answer 7

Positive

Question 8

Neutron charge

Answer 8

Neutral

Question 9

Electron charge

Answer 9

Negative

Question 10

What forms the nucleus?

Answer 10

Protons AND neutrons cluster together to down the nucleus of an atom

Question 11

Suggested atoms cannot be created, destroyed, or divided into smaller particles

Answer 11

Dalton

Question 12

Suggested electrons occupy specific energy levels or shells

Answer 12

Bohr

Question 13

Suggested most of the mass of the atom is in the tiny, sense, positively barged nucleus

Answer 13

Thomson

Question 14

Suggested most of the atom is empty space

Answer 14

Rutherford

Question 15

Suggested all matter is made of small particles called atoms

Answer 15

Dalton

Question 16

Suggested all atoms of the same element are identical

Answer 16

Dalton

Question 17

Suggested atoms contain negatively charged particles

Answer 17

Thomson

Question 18

Suggested that the nucleus contains positively charged particles called protons and particles with no electrical charge called neutrons

Answer 18

Rutherford

Question 19

Suggested different elements combined together forms compounds

Answer 19

Dalton

Question 20

Suggested electrons move around a central nucleus

Answer 20

Rutherford

Question 21

Discovered he nucleus

Answer 21

Rutherford

Question 22

Suggested that all matter is made of atoms

Answer 22

Dalton

Question 23

Proposed the “raisin bun” model of the atom

Answer 23

Thomson

Question 24

Observed streaks of negatively charged particles in gas discharge tubes

Answer 24

Thomson

Question 25

Proposed that electrons exist in energy levels

Answer 25

Bohr