Chapter 5 Flashcards

(25 cards)

0
Q

Wavelength

A

Shortest distance between equivelant points on a continous wave

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1
Q

Electromagnetic radiation

A

Form of energy that exhibits wavelike behavior as it travels through space

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2
Q

Frequency

A

Number of waves that pass a given point per second

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3
Q

Amplitude

A

Wave’s height from the origin to a crest or from the origin to the trough

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4
Q

Electromagnetic spectrum

A

Em spectrum
Encompasses all forms of electromagnetic radition
The only differences in the types of radiation being their frequencies and wave lengths

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5
Q

Quantum

A

Minimum amount of energy that can be gained or lost by an atom

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6
Q

Planck’s constant

A

E is energy
H is plancks constant
V is frequency

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7
Q

Photoelectric effect

A

Proton goes in electron comes out

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8
Q

Photon

A

Particle of electromagnetic radiation with no mass that carries a quantum of energy

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9
Q

Atomic emission spectrum

A

Element is the set of frequencies of the electromagnetic waves emitted by atoms of the element

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10
Q

Ground state

A

The lowest allowable energy state of an atom

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11
Q

De brogile equation

A

Predicts that all moving particles have wave characteristics

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12
Q

Heisenberg uncertainty principle

A

States that it is fundamentally impossible to know precisely both the velocity and position of a particle at the same time

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13
Q

Quantum mechanical model of the atom

A

Limits an electron’s energy to certain values

No attempt to describe the electron’s path around the nucleus

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14
Q

Atomic orbital

A

Three dimensional region around the nucleus

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15
Q

Principal quantum number

A

n

Indicates the relative sizes and energies of atomic orbitals

16
Q

Principal energy level

A

The major energy levels of an atom

17
Q

Energy sublevel

A

The energy levels contained within a principal energy level

18
Q

Electron configuration

A

The arrangement of electrons in an atom

19
Q

Aufbau principle

A

States that each electron occupies the lowest energy orbital available

20
Q

Pauli exclusion principle

A

States that a maximum of two electrons may occupy a single atomic orbital but only if the electrons have opposite spins

21
Q

Hund’s rule

A

States that single electrons with the same spin must occupy each equal energy orbital before additional electrons with opposite spins can occupy the same orbital

22
Q

Valence electron

A

Defined as electrons in the atoms outermost orbitals generally those orbitals assosciated with the atoms highest principal energy level

23
Q

Electron dot structure

A

Consists of the elements symbol which represents the atomic nucleus and inner level elctrons surrounded by dots representing the atoms valence electrons

24
Orbital filling sequence
``` 1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p 7s 5f 6d 7p ```