physical science

Question 1

existence of atoms

Answer 1

Democritus

Question 2

electrons

Answer 2

J.J. Thomson

Question 3

nucleus/empty space

Answer 3

Ernest Rutherford

Question 4

Electron are in levels

Answer 4

Neils Bohr

Question 5

electrons are in orbitals

Answer 5

Werner Heisenberg

Question 6

Plum pudding model

Answer 6

Thomson

Question 7

Rutherford model
Energy levels

Answer 7

Bohr

Question 8

Quantum Mechanical Model

Answer 8

Heisenberg

Question 9

proton

Answer 9

+

Question 10

neutron

Answer 10

0

Question 11

electron

Answer 11

-

Question 12

nucleus

Answer 12

+

Question 13

entire atom

Answer 13

0

Question 14

Which characteristic of Bohr’s model of the atom is no longer accepted by the scientific community?

Answer 14

Electrons exist in definite energy levels

Question 15

Then, what is the purpose of using Bohr’s model of the atom?

Answer 15

Electrons orbit the nucleus and the atoms does not collapse in on itself

Question 16

1st energy level: e

Answer 16

2

Question 17

2nd energy level

Answer 17

8

Question 18

3rd energy level

Answer 18

18

Question 19

4th energy level

Answer 19

32

Question 20

Describe the “path”/location of the electron in comparison to the nucleus of an atom.

Answer 20

orbit around the nucleus

Question 21

When electrons jump from one energy level to another energy level, this is called:

Answer 21

tunneling

Question 22

When electrons move____ the nucleus they gain energy.

Answer 22

Away

Question 23

When electrons move____the nucleus they lose energy.

Answer 23

towards

Question 24

Explain how atoms are able to give off light.

Answer 24

When they get excited they jump energy levels, but they only stay

Question 25

s orbital

Answer 25

sphere

Question 26

p orbital

Answer 26

dumbbell

Question 27

d orbital

Answer 27

2 dumbbells

Question 28

Each individual orbital can hold a maximum of electrons

Answer 28

2