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Chemistry 108 > Exam 2 > Flashcards

Exam 2 Flashcards

1
Q

Principal Quantum Number

A

shell layer

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2
Q

Equation for how many electrons a shell can hold

A

2n^2

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3
Q

Shell n = 1 electron capacity

A

2

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4
Q

Shell n = 2 electron capacity

A

8

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5
Q

Shell n = 3 electron capacity

A

18

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6
Q

Shell n = 4 electron capacity

A

32

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7
Q

Which shell has the least amount of energy

A

n = 1

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8
Q

Which shell has the most amount of energy

A

n = largest number

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9
Q

What is the ground state of an atom

A

arrangement of electrons that has the lowest total energy

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10
Q

What is an excited state

A

one or more of an atom’s electrons are located in higher energy shells

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11
Q

What is relaxation

A

When an excited electron drop back down into it’s lower energy levels

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12
Q

What is emitted when electrons relax? How is it related to wavelength?

A

Electrons emit light, the amount of eV the electron loses is the same amount of energy possessed by the light wave

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13
Q

What subshell is in n=1 and how many electrons can it hold

A

S = 2

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14
Q

What subshell is in n=2 and how many electrons can it hold

A

S = 2, P = 6

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15
Q

What subshell is in n=3 and how many electrons can it hold

A

S = 2, P = 6, D = 10

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16
Q

What subshell is in n=4 and how many electrons can it hold

A

S= 2, P = 6, D = 10, F = 14

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17
Q

What is electron confiuration

A

the arrangements of electrons in the shells and subshells

18
Q

Formula and charge for Ammonium

19
Q

Formula and charge for Acetate

A

CH₃CO₂-

20
Q

Formula and charge for Cyanide

21
Q

Formula and charge for Nitrite

22
Q

Formula and charge for Nitrate

23
Q

Formula and charge for Carbonate

24
Q

Formula and charge for Hydrogen Carbonate (bicarbonate)

25
Q

Formula and charge for Sulfite

26
Q

Formula and charge for Sulfate

27
Q

Formula and charge for Hydrogen Sulfate (bisulfate)

28
Q

Formula and charge for Permanganate

29
Q

Formula and charge for Phosphate

30
Q

Formula and charge for Hydrogen Phosphate

31
Q

Formula and charge for Dihydrogen Phosphate

A

H₂PO₄-

32
Q

Formula and charge for Hypochlorite

33
Q

Formula and charge for Chlorite

34
Q

Formula and charge for Chlorate

35
Q

Formula and charge for Perchlorate

36
Q

Formula and charge for Chromate

37
Q

Formula and charge for Dichromate

A

Cr₂O²₇-

38
Q

Formula and charge for Peroxide

39
Q

Formula and charge for Hydroxide

40
Q

Wavelength unit

A

meters (m)

41
Q

Frequency unit

A

hertz (Hz, 1/s, s⁻¹)

42
Q

Energy unit

A

joules (J)

Chemistry 108 (9 decks)

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