Atomic Structure and History - Test 4

Question 1

What is an example of a cathode ray tube?

Answer 1

Television

Question 2

Who discovered electrons?

Answer 2

Thomson

Question 3

What does the word “atom” mean in Greek?

Answer 3

Indivisible

Question 4

Who was the first person to come up with the theory of atoms?

Answer 4

Democritus

Question 5

What is a common use for microwaves?

Answer 5

Cooking food

Question 6

Who proposed the plum pudding model?

Answer 6

Joseph Thomson

Question 7

What animal can see infrared light?

Answer 7

Snakes

Question 8

What is the section of the electromagnetic spectrum that humans see?

Answer 8

Visible light

Question 9

What are the waves on the electromagnetic spectrum?

Answer 9

Radio waves
Radar waves
Microwaves
Infrared waves
Violet light waves
UV waves
X-rays
Gamma rays

Question 10

What is the most dangerous electromagnetic wave?

Answer 10

Gamma rays

Question 11

What is the positively charged electrode on a cathode ray tube called?

Answer 11

Anode

Question 12

What is today’s model of an atom called?

Answer 12

Quantum mechanical model

Question 13

What were the scientist who studied electron interested in?

Answer 13

electricity

Question 14

In the quantum mechanical model what is true about the electrons?

Answer 14

They can be found inside the atomic orbitals - - but the specific location cannot be found

Question 15

Be able to label a wave

Answer 15

Look at your notes

Question 16

Be able to draw a p and an s orbital

Answer 16

Look at your notes

Question 17

Be able to draw the plum pudding model of an atom (label the + and - charges)

Answer 17

Look at notes

Question 18

What was the purpose of the flame lab?

Answer 18

Use your notes

Question 19

Where do UV rays come from - - how do thy harm us?

Answer 19

From the sun - - they changes our DNA

Question 20

How do microwaves cook food?

Answer 20

Use your notes

Question 21

What experiment did Rutherford used to create his model of the atom?

Answer 21

Gold-foil experiment

Question 22

Are line spectra the same for every element?

Answer 22

NO

Question 23

Did Rutherford discover the proton?

Answer 23

YES

Question 24

Can atoms be broken down into smaller parts?

Answer 24

NO

Question 25

Are ALL of Dalton's atomic theory applicable today?

Answer 25

NO

Question 26

EC microvwaves are a great way to heat up hot pockets?

Answer 26

NO

Question 27

Are infrared waves used in heat sensing?

Answer 27

YES

Question 28

Are Gamma rays less dangerous than infrared waves?

Answer 28

NO

Question 29

Do electrons transport instantaneously in the quantum mechanical model?

Answer 29

YES

Question 30

Where do UV rays come from? How do they harm us?

Answer 30

From the sun - - they change our DNA and can cause skin cancer

Question 31

How do microwaves cook food?

Answer 31

Excite food molecules which excites each other

Question 32

What was the purpose of the flame test lab?

Answer 32

To look at electron transitions - which colors each element will produce - how they are different

Question 33

What is the negatively charged particles?

Answer 33

Electron

Question 34

What is the weakest type of radiation?

Answer 34

Radio waves

Question 35

When can the only small strip of light are able to be seen?

Answer 35

Emission Spectrum

Question 36

What is the glowing beam that travels from cathode to anode?

Answer 36

Cathode Ray

Question 37

Who is credited for discovering the atom?

Answer 37

Dalton

Question 38

Who is credited with discovering the electron?

Answer 38

Thomson

Question 39

What is the term for length from crest to crest on a wave?

Answer 39

wavelength

Question 40

What is the most powerful and most dangerous type of radiation?

Answer 40

Gamma ray

Question 41

What are electromagnetic waves that travel in a vacuum at 3.00 x 10(8) m/s?

Answer 41

Light

Question 42

What is the term for the amount of waves that pass through a single point in a second?

Answer 42

frequency

Question 43

What is the subatomic particles with no charge?

Answer 43

Neutron

Question 44

What is the term for all the colors of the rainbow?

Answer 44

Continuous spectrum

Question 45

What is the lowest part of the wave?

Answer 45

Trough

Question 46

What is used to separate light into separate wavelengths?

Answer 46

Diffraction grading

Question 47

What is the light on the electromagnetic spectrum we can see?

Answer 47

Visible light

Question 48

What is the area around the nucleus where the electron is likely to be?

Answer 48

Atomic orbital

Question 49

What did Democritus contribute to atomic theory?

Answer 49

First to theorize about an atom - but did not use science | Said that atoms were indivisible

Question 50

What did Rutherford contribute to atomic theory?

Answer 50

Discovered the proton Used Gold foil experiment Planetary model

Question 51

What did Thomson contribute to atomic theory?

Answer 51

Discovered the electron with cathode rays | Created the plum pudding model

Question 52

What did Dalton contribute to atomic theory?

Answer 52

Credited with discovery of the atom - and used science | Wrote an atomic theory