Atomic Structure and History - Test 4 Flashcards Preview

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Flashcards in Atomic Structure and History - Test 4 Deck (52)
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1

What is an example of a cathode ray tube?

Television

2

Who discovered electrons?

Thomson

3

What does the word "atom" mean in Greek?

Indivisible

4

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

Democritus

5

What is a common use for microwaves?

Cooking food

6

Who proposed the plum pudding model?

Joseph Thomson

7

What animal can see infrared light?

Snakes

8

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

Visible light

9

What are the waves on the electromagnetic spectrum?

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

10

What is the most dangerous electromagnetic wave?

Gamma rays

11

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

Anode

12

What is today's model of an atom called?

Quantum mechanical model

13

What were the scientist who studied electron interested in?

electricity

14

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

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

15

Be able to label a wave

Look at your notes

16

Be able to draw a p and an s orbital

Look at your notes

17

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

Look at notes

18

What was the purpose of the flame lab?

Use your notes

19

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

From the sun - - they changes our DNA

20

How do microwaves cook food?

Use your notes

21

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

Gold-foil experiment

22

Are line spectra the same for every element?

NO

23

Did Rutherford discover the proton?

YES

24

Can atoms be broken down into smaller parts?

NO

25

Are ALL of Dalton's atomic theory applicable today?

NO

26

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

NO

27

Are infrared waves used in heat sensing?

YES

28

Are Gamma rays less dangerous than infrared waves?

NO

29

Do electrons transport instantaneously in the quantum mechanical model?

YES

30

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

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