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Chemistry > LM11-12 > Flashcards

LM11-12 Flashcards

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1
Q

When an electron jumps energy levels, a photon is ____

A

absorbed

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2
Q

When an electron falls energy levels, a photon is ____

A

emitted

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3
Q

Lyman series

A

Electron falls to n=1

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4
Q

Lyman series falls under what part of the EMR spectrum?

A

UV

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5
Q

Balmer series

A

Electron falls to n = 2

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6
Q

Balmer series falls under what part of the EMR spectrum?

A

Visible

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7
Q

Paschen series

A

Electron falls to n = 3

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8
Q

Paschen series falls under what part of the EMR spectrum?

A

Infrared

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9
Q

The EMR region of emission lines is found from the _____ (lower/higher energy level)

A

lower energy level

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10
Q

Ψ

A

wave function

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11
Q

Ψ squared

A

Probability of finding particles in a position

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12
Q

Rydberg’s constant is the _____

A

ionization energy of hydrogen

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13
Q

Quantum number n

A

Principle quantum number

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14
Q

Quantum number l

A

Angular momentum

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15
Q

What is the maximum value of l in relation to n?

A

n-1

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16
Q

l = 0 and shape

A

s orbital, spherical

17
Q

l = 1 and shape

A

p orbital, dumbbell

18
Q

l = 2 and shape

A

d orbital, two overlapping dumbbells

19
Q

Quantum number ml and meaning

A

magnetical quantum number, orientation

20
Q

What can ml be in relation to l?

A

-l, 0, +l

21
Q

Orientations for l = 0

A

1 (0)

22
Q

Orientations for l = 1

A

3 (-1, 0, 1)

23
Q

Orientations for l = 2

A

5 (-2, -1, 0, 1, 2)

24
Q

Quantum number ms

A

Electron spin

25
Q

Electron spin (ms) possible values

A

+1/2 or -1/2

26
Q

Aufbau principle

A

Electron configuration starts with orbits closest to nucleus and ascending (emphasis on sequence)

27
Q

Pauli Exclusion Principle

A

Never more than two electrons in one orbit

28
Q

Hund’s rule

A

Distribute electrons amongst degenerate (equal) orbitals (i.e. the multiple orbitals in p and d subshells)

Chemistry (14 decks)

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