LM11-12 Flashcards by Braedan Geremia

When an electron jumps energy levels, a photon is ____

absorbed

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When an electron falls energy levels, a photon is ____

emitted

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Lyman series

Electron falls to n=1

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Lyman series falls under what part of the EMR spectrum?

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Balmer series

Electron falls to n = 2

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Balmer series falls under what part of the EMR spectrum?

Visible

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Paschen series

Electron falls to n = 3

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Paschen series falls under what part of the EMR spectrum?

Infrared

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

lower energy level

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wave function

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Ψ squared

Probability of finding particles in a position

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Rydberg’s constant is the _____

ionization energy of hydrogen

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Quantum number n

Principle quantum number

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Quantum number l

Angular momentum

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

n-1

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l = 0 and shape

s orbital, spherical

l = 1 and shape

p orbital, dumbbell

l = 2 and shape

d orbital, two overlapping dumbbells

Quantum number ml and meaning

magnetical quantum number, orientation

What can ml be in relation to l?

-l, 0, +l

Orientations for l = 0

1 (0)

Orientations for l = 1

3 (-1, 0, 1)

Orientations for l = 2

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

Quantum number ms

Electron spin

Electron spin (ms) possible values

+1/2 or -1/2

Aufbau principle

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

Pauli Exclusion Principle

Never more than two electrons in one orbit

Hund's rule

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