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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
Nitrogen (N) atomic no.
7
26
Oxygen (O) atomic no.
8
27
Fluorine (F) atomic no.
9
28
Sodium (Na) atomic no.
11
29
Magnesium (Mg) atomic no.
12
30
Aluminum (Al) atomic no.
13
31
Phosphorus (P) atomic no.
15
32
Calcium (Ca) atomic no.
20
33
Cobalt (Co) atomic no.
27
34
Copper (Cu) atomic no.
29
35
Barium (Ba) atomic no.
56
36
Tungsten (W) atomic no.
74
37
the same atomic number but different atomic mass number
Isotopes
38
Atoms having the same number of protons but a different number of neutrons
Isotopes
39
same atomic mass number but different atomic numbers
Isobar
40
Atoms having the same number of nucleons but different | number of protons and neutrons
Isobar
41
the same number of neutrons
Isotone
42
the same atomic number and the same atomic mass number, differ in chemical structure
Isomer
43
Atoms having the same number of protons and neutrons but have different nuclear energy levels.
Isomer
44
Different energy levels due to excess energy in the nucleus
Isomer
45
Energy is released in form or photon
Isomer
46
combination of atoms
Molecules
47
Smallest particle of an element is
Atom
48
Smallest particle of a compound is
Molecule
49
The idea that all matter is made up of tiny, indivisible particles
Greek atom
50
Nucleons
Atomic mass number
51
Basic Forces in Nature
Nuclear Force, Electromagnetic Force, Gravitational Force
52
miniature solar system
Bohr Model
53
improved Rutherford
Bohr Model
54
2n^2= no. of electrons ; n= no. of orbits
Bohr Model
55
the strength of the attachment to the electron to the nucleus
Electron binding energy
56
Hydrogen valence electron
1
57
Helium valence electron
2
58
Beryllium valence electron
2
59
Carbon valence electron
4
60
Nitrogen valence electron
5
61
Oxygen valence electron
6
62
Fluorine valence electron
7
63
Sodium valence electron
1
64
Magnesium valence electron
2
65
Aluminum valence electron
3
66
Phosphorus valence electron
5
67
Calcium valence electron
2
68
Cobalt valence electron
2
69
Copper valence electron
1
70
Barium valence electron
2
71
Tungsten valence electron
2
72
The atomic model used as basis in creating the periodic table
Dalton's
73
The name of the columns in the periodic table
groups
74
the speed of light in miles per second
186,400 mi/s
75
Occurs if the atom has too few or too many neutrons
Radioactivity

RT 203 (11 decks)

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