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RT 203 > 2. The Atom > Flashcards

2. The Atom Flashcards

1
Q

is the smallest particle that has all the properties of an element

A

Atom

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2
Q

Theory - an element is composed of atoms that reacted the same way chemically

A

Dalton Atom

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3
Q

Theory - eye and hook affair account for physical combinations

A

Dalton Atom

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4
Q

Dalton atom year

A

1808

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5
Q

Theory - An element is composed of tiny indivisible sphere, indestructible particles called atoms

A

Dalton Atom

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6
Q

Theory - All atoms of an element are identical and have the same properties

A

Dalton Atom

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7
Q

Theory - Atoms of different elements combine to form compounds

A

Dalton Atom

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8
Q

Thompson Model year

A

1890

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9
Q

Theory - Atom is electrically neutral

A

Thompson Model

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10
Q

Theory - electrons are uniformly disperse in homogenous positive sphere

A

Thompson Model

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11
Q

Rutherford Model year

A

1911

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12
Q

disproved Thompson

A

Ernest Rutherford

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13
Q

Theory - Atom Contains small dense, positively charged center with electron cloud

A

Rutherford Model

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14
Q

Bohr Model year and person who invented

A

1913, Neil Bohr

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15
Q

Theory - Speculated that in the atom, electron revolve around the nucleus, occupying circular orbits w/ distinct energy levels

A

Bohr Model

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16
Q

The number of proton in the nucleus or the number of electrons in neutral atom

A

Atomic Number (Z)

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17
Q

The number of protons and neutrons in an atom

A

Mass Number (A)

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18
Q

nucleus

A

Mass Number (A) – Atomic Number (Z)

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19
Q

Outer shell electrons

A

Valence electrons

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20
Q

Valence electrons have a maximum of __ electrons

A

8

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21
Q

Hydrogen (H) atomic no.

A

1

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22
Q

Helium (He) atomic no.

A

2

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23
Q

Beryllium (Be) atomic no.

A

4

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24
Q

Carbon (C) atomic no.

A

6

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25
Q

Nitrogen (N) atomic no.

A

7

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26
Q

Oxygen (O) atomic no.

A

8

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27
Q

Fluorine (F) atomic no.

A

9

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28
Q

Sodium (Na) atomic no.

A

11

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29
Q

Magnesium (Mg) atomic no.

A

12

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30
Q

Aluminum (Al) atomic no.

A

13

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31
Q

Phosphorus (P) atomic no.

A

15

32
Q

Calcium (Ca) atomic no.

A

20

33
Q

Cobalt (Co) atomic no.

A

27

34
Q

Copper (Cu) atomic no.

A

29

35
Q

Barium (Ba) atomic no.

A

56

36
Q

Tungsten (W) atomic no.

A

74

37
Q

the same atomic number but different atomic mass number

A

Isotopes

38
Q

Atoms having the same number of protons but a different number of neutrons

A

Isotopes

39
Q

same atomic mass number but different atomic numbers

A

Isobar

40
Q

Atoms having the same number of nucleons but different

number of protons and neutrons

A

Isobar

41
Q

the same number of neutrons

A

Isotone

42
Q

the same atomic number and the same atomic mass number, differ in chemical structure

A

Isomer

43
Q

Atoms having the same number of protons and neutrons but have different nuclear energy levels.

A

Isomer

44
Q

Different energy levels due to excess energy in the nucleus

A

Isomer

45
Q

Energy is released in form or photon

A

Isomer

46
Q

combination of atoms

A

Molecules

47
Q

Smallest particle of an element is

A

Atom

48
Q

Smallest particle of a compound is

A

Molecule

49
Q

The idea that all matter is made up of tiny, indivisible particles

A

Greek atom

50
Q

Nucleons

A

Atomic mass number

51
Q

Basic Forces in Nature

A

Nuclear Force,
Electromagnetic Force,
Gravitational Force

52
Q

miniature solar system

A

Bohr Model

53
Q

improved Rutherford

A

Bohr Model

54
Q

2n^2= no. of electrons ; n= no. of orbits

A

Bohr Model

55
Q

the strength of the attachment to the electron to the nucleus

A

Electron binding energy

56
Q

Hydrogen valence electron

A

1

57
Q

Helium valence electron

A

2

58
Q

Beryllium valence electron

A

2

59
Q

Carbon valence electron

A

4

60
Q

Nitrogen valence electron

A

5

61
Q

Oxygen valence electron

A

6

62
Q

Fluorine valence electron

A

7

63
Q

Sodium valence electron

A

1

64
Q

Magnesium valence electron

A

2

65
Q

Aluminum valence electron

A

3

66
Q

Phosphorus valence electron

A

5

67
Q

Calcium valence electron

A

2

68
Q

Cobalt valence electron

A

2

69
Q

Copper valence electron

A

1

70
Q

Barium valence electron

A

2

71
Q

Tungsten valence electron

A

2

72
Q

The atomic model used as basis in creating the periodic table

A

Dalton’s

73
Q

The name of the columns in the periodic table

A

groups

74
Q

the speed of light in miles per second

A

186,400 mi/s

75
Q

Occurs if the atom has too few or too many neutrons

A

Radioactivity

RT 203 (11 decks)

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