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Chemistry in the Community - Kautz > Atomic Structure and History - Test 4 > Flashcards

Atomic Structure and History - Test 4 Flashcards

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1
Q

What is an example of a cathode ray tube?

A

Television

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2
Q

Who discovered electrons?

A

Thomson

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3
Q

What does the word “atom” mean in Greek?

A

Indivisible

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4
Q

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

A

Democritus

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5
Q

What is a common use for microwaves?

A

Cooking food

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6
Q

Who proposed the plum pudding model?

A

Joseph Thomson

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7
Q

What animal can see infrared light?

A

Snakes

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8
Q

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

A

Visible light

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9
Q

What are the waves on the electromagnetic spectrum?

A 
Radio waves
Radar waves
Microwaves
Infrared waves
Violet light waves
UV waves
X-rays
Gamma rays
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10
Q

What is the most dangerous electromagnetic wave?

A

Gamma rays

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11
Q

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

A

Anode

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12
Q

What is today’s model of an atom called?

A

Quantum mechanical model

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13
Q

What were the scientist who studied electron interested in?

A

electricity

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14
Q

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

A

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

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15
Q

Be able to label a wave

A

Look at your notes

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16
Q

Be able to draw a p and an s orbital

A

Look at your notes

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17
Q

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

A

Look at notes

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18
Q

What was the purpose of the flame lab?

A

Use your notes

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19
Q

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

A

From the sun - - they changes our DNA

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20
Q

How do microwaves cook food?

A

Use your notes

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21
Q

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

A

Gold-foil experiment

22
Q

Are line spectra the same for every element?

A

NO

23
Q

Did Rutherford discover the proton?

A

YES

24
Q

Can atoms be broken down into smaller parts?

A

NO

25
Q

Are ALL of Dalton’s atomic theory applicable today?

A

NO

26
Q

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

A

NO

27
Q

Are infrared waves used in heat sensing?

A

YES

28
Q

Are Gamma rays less dangerous than infrared waves?

A

NO

29
Q

Do electrons transport instantaneously in the quantum mechanical model?

A

YES

30
Q

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

A

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

31
Q

How do microwaves cook food?

A

Excite food molecules which excites each other

32
Q

What was the purpose of the flame test lab?

A

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

33
Q

What is the negatively charged particles?

A

Electron

34
Q

What is the weakest type of radiation?

A

Radio waves

35
Q

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

A

Emission Spectrum

36
Q

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

A

Cathode Ray

37
Q

Who is credited for discovering the atom?

A

Dalton

38
Q

Who is credited with discovering the electron?

A

Thomson

39
Q

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

A

wavelength

40
Q

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

A

Gamma ray

41
Q

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

A

Light

42
Q

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

A

frequency

43
Q

What is the subatomic particles with no charge?

A

Neutron

44
Q

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

A

Continuous spectrum

45
Q

What is the lowest part of the wave?

A

Trough

46
Q

What is used to separate light into separate wavelengths?

A

Diffraction grading

47
Q

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

A

Visible light

48
Q

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

A

Atomic orbital

49
Q

What did Democritus contribute to atomic theory?

A

First to theorize about an atom - but did not use science

Said that atoms were indivisible

50
Q

What did Rutherford contribute to atomic theory?

A

Discovered the proton
Used Gold foil experiment
Planetary model

51
Q

What did Thomson contribute to atomic theory?

A

Discovered the electron with cathode rays

Created the plum pudding model

52
Q

What did Dalton contribute to atomic theory?

A

Credited with discovery of the atom - and used science

Wrote an atomic theory

Chemistry in the Community - Kautz (24 decks)

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