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Chemistry > Ch. 4 Vocab > Flashcards

Ch. 4 Vocab Flashcards

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1
Q

Electromagnetic Radiation

A

and form of energy that exhibits wave-like behavior

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2
Q

Wavelength

A

distance between corr. points on waves

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3
Q

Frequency

A

number of waves passing a given point per sec.

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4
Q

Speed of Light

A

all forms of ER at the same speed in a vacuum

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5
Q

Photoelectric Effect

A

emission of electrons from a metal when light shines on the metal

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6
Q

Wave-Particle Theory

A

light acts like a stream of particles

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7
Q

Max Planck

A

proposes that objects only emit energy in small, specific packets called a Quantum

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8
Q

Quantum

A

minimum quantity of energy that can be lost or gained by an atom

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9
Q

Albert Einstein

A

each quantum represents a particle of light called photons

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10
Q

Photon

A

particle of ER having 0 mass and carrying a quantum of energy; making it a light particle

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11
Q

Ground State

A

the lowest energy state of an atom

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12
Q

Excited State

A

an atoms higher potential energy

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13
Q

Quantum Theory

A

a mathematical descrition of the wave properties of electrons

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14
Q

Orbital

A

3-D region around the nucleus that indicates the probable location of an electron

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15
Q

Quantum Numbers

A

four numbers that specify the properties of atomic orbitals and the properties of their electrons

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16
Q

What is the P in PAMS ESOS

A

Principal Q.N.

17
Q

What is the A in PAMS ESOS

A

Angular Momentum Q.N.

18
Q

What is the M in PAMS ESOS

A

Magnetic Q.N.

19
Q

What is the first S in PAMS ESOS

A

Spin Q.N.

20
Q

What is the E in PAMS ESOS

A

Energy levels

21
Q

What is the second S in PAMS ESOS

A

Shapes

22
Q

What is the O in PAMS ESOS

A

Orientation

23
Q

What is the third S in PAMS ESOS

A

States

24
Q

Aufbau Principle

A

an electron occupies the lowest energy orbital that can receive it

25
Q

Pauli Exclusion Principle

A

no 2 electrons in the same atom can have the same set of 4 Q.N.

26
Q

Hund’s Rule

A

orbitals of the same energy levels all have to be occupied by 1 electron before you can fill them up with 2

27
Q

Orbital Notation

A

using arrows to represent electrons in orbitals

28
Q

Electron Configuration Notation

A

using superscripts to represent electrons within orbitals

29
Q

Electron Dot Notation

A

shows the electrons in the highest energy level with dots

30
Q

Highest occupied Energy Level

A

electron containing the main energy level with the highest Principle Q.N.

31
Q

Inner Shell Electrons

A

electrons that are not in the highest occupied energy level

32
Q

Heisenberg Uncertainty Principle

A

states that it is impossible to determine the position and velocity of an electron

Chemistry (4 decks)

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