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Chemisty 9th > Atomic Structure > Flashcards

Atomic Structure Flashcards

1
Q

What was John Dalton’s idea of an atom?

A

An indivisible particle.

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2
Q

Who thought an atom was an indivisible particle?

A

John Dalton

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3
Q

What was J.J. Thomson’s model called?

A

The Plum Pudding Model.

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4
Q

What was J.J. Thomson’s idea of an atom?

A

A positively charged sphere with negatively charged electrons inside.

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5
Q

What subatomic particle did J.J. Thomson discover?

A

The electron.

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6
Q

What is an atom?

A

The smallest part of matter that keeps its original properties.

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7
Q

What is the Law of Conservation of Mass?

A

Mass can not be created nor destroy.

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8
Q

Who invented the Law of Conservation of Mass?

A

Antoine Lavoisier.

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9
Q

What are the four parts of Dalton’s Atomic Theory?

A
  1. Elements are composed of tiny, indivisible particles called atoms.
  2. All atoms within a given element are identical.
  3. Atoms of different elements are different.
  4. During Chemical reactions, atoms can be neither created nor destroyed; they are simply rearranged.
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10
Q

What was Ernest Rutherford’s idea of an atom.

A

A sphere with a tiny, positively charged nucleus center with mostly empty space and some electrons around it.

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11
Q

What part/particle of the atom did Ernest Rutherford discover?

A

The nucleus and the proton/

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12
Q

Who invented the Law of Definite Proportions?

A

Joseph Proust.

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13
Q

What law did Joseph Proust invent?

A

The Law of Definite Proportions.

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14
Q

What law did Antoine Lavoisier invent?

A

The Law of Conservation of Mass?

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15
Q

What is the Law of Definite Proportions?

A

The ratio of elements in a compound is always the same.

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16
Q

Who discovered the electron?

A

J.J. Thomson.

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17
Q

Who discovered the nucleus and the proton in an atom?

A

Ernest Rutherford.

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18
Q

What was Niels Bohr’s idea of an atom?

A

A positively charged nucleus with negative charged electrons circling around it in energy levels.

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19
Q

What about the electrons in atoms did Niels Bohr figure out?

A

Electrons surround the atom in energy levels.

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20
Q

Who discovered the concept of energy levels in atoms?

A

Niels Bohr.

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21
Q

What subatomic particle did Ernest Rutherford discover?

A

The Proton.

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22
Q

Who discovered the proton?

A

Ernest Rutherford.

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23
Q

What subatomic particle did James Chadwick discover?

A

The Neutron.

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24
Q

Who discovered the neutron?

A

James Chadwick.

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25
Q

What is the most recent model of an atom?

A

The Charged Cloud Model.

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26
Q

What is the charged cloud model?

A

The idea that electrons don’t rotate around the nucleus but in fact jump around in a fairly unpredictable pattern.

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27
Q

What three subatomic particles make up the atom?

A
  1. Protons
  2. Neutrons
  3. Electrons
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28
Q

What two subatomic particles make up the nucleus?

A
  1. Protons

2. Neutrons

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29
Q

What subatomic particle is not part of the nucleus?

A

The electron.

30
Q

What part of the atom takes up the majority of the mass?

A

The nucleus.

31
Q

How is a proton charged?

A

Positively or +1 .

32
Q

How is a electron charged?

A

Negatively or -1.

33
Q

How is a neutron charged?

A

Trick question a neutron doesn’t have a charge or 0.

34
Q

What subatomic particle has a positive charge or +1?

A

The proton.

35
Q

What subatomic particle has a negative charge or -1?

A

The electron.

36
Q

What subatomic particle has no charge or 0?

A

The neutron.

37
Q

About how much does a proton weigh (in amu)?

A

About 1 amu (or exactly 1.007316 amu).

38
Q

About how much does a neutron weigh (in amu)?

A

About 1 amu (or exactly 1.008701 amu).

39
Q

About how much does an electron weigh (in amu)?

A

About .0005 amu (or exactly .000549 amu).

40
Q

What is the atomic number of an atom?

A

The amount of protons an atom has.

41
Q

What is the mass number of an atom?

A

The amount of protons plus the amount of neutrons.

42
Q

What does electronically neutral mean for an atom?

A

When an atom has the same amount of protons and electrons so it has no charge.

43
Q

What element has an atomic number of 6?

A

Carbon (C).

44
Q

What element has an atomic number of 8?

A

Oxygen (O).

45
Q

What element has an atomic number of 1?

A

Hydrogen (H).

46
Q

What element has an atomic number of 26?

A

Iron (Fe).

47
Q

What element has an atomic number of 92?

A

Uranium (U).

48
Q

What element has an atomic number of 79?

A

Gold (Au).

49
Q

What is the atomic number of Carbon (C)?

A

6.

50
Q

What is the atomic number of Oxygen (O)?

A

8.

51
Q

What is the atomic number of Hydrogen (H)?

A

1.

52
Q

What is the atomic number of Uranium (U)?

A

92.

53
Q

What is the atomic number of Gold (Au)?

A

79.

54
Q

What is so special about the energy level of noble gases.

A

Their outer most energy level have a full set of electrons.

55
Q

What elements does water have.

A

Two hydrogen and one oxygen.

56
Q

What compound is H2O?

A

Water.

57
Q

What is an isotope?

A

Each of the many forms of an element with the same amount of protons but a different amount of neutrons in their nuclei.

58
Q

What is the smallest subatomic particle known to man?

A

A quark.

59
Q

What is a quark?

A

The smallest subatomic particle known to man.

60
Q

What are the six kinds or flavors of quarks?

A
  1. up
  2. down
  3. charm
  4. strange
  5. top
  6. bottom
61
Q

What kinds of quarks does a proton have?

A

Two up quarks and one down quark.

62
Q

What kinds of quarks does a neutron have?

A

Two down quarks and one up quark.

63
Q

What subatomic particle has two up quarks and one down quark?

A

A proton.

64
Q

What subatomic particle has two down quarks and one up quark?

A

A neutron.

65
Q

What kind of subatomic particle are protons and neutrons?

A

Hadrons, specifically baryons.

66
Q

What are the two kinds of hadrons?

A

Baryons and mesons.

67
Q

What is a baryon?

A

A subatomic particle with three quarks.

68
Q

What is a meson?

A

A subatomic particle with one quark and one antiquark.

69
Q

What charge do up quarks have?

A

A positive charge.

70
Q

What charge do down quarks have?

A

A negative charge.

Chemisty 9th (1 decks)

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