Quantum Mechanical Model of The Atom Flashcards

(33 cards)

1
Q

The energy emitted in the form of waves having an oscillating electric field component that is perpendicular to magnetic field component.

A

Electromagnetic radiation

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2
Q

Highest point of a wave (points W and Y)

A

Crest or Peak

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3
Q

Lowest point of a wave (point X and Z)

A

Trough

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4
Q

Distance between a grass and a trough in the midline of the wave (thick dashed line)

A

Amplitude

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5
Q

1/2 the vertical distance from a crest to the nearest trough

A

Amplitude

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6
Q

Related to the intensity (I) of a wave (radiant power per unit area)

A

Amplitude

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7
Q

Distance between two successive crests for two consecutive troughs

A

Wavelength

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8
Q

Number of wave cycles propagating per second

A

Frequency

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9
Q

Number of crest or number of trout passing through a certain point per second

A

Frequency

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10
Q

Inversely proportional to the wavelength.

A

Frequency

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11
Q

Time it takes for one cycle of a wave to pass through a point.

A

Period (T)

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12
Q

Reciprocal of the frequency

A

Period (T)

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13
Q

Number of cycles per unit distance

A

Wavenumber

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14
Q

Reciprocal of wavelength

A
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15
Q

Yours when waves combine. It can be constructive or destructive.

A

Interference

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16
Q

Results with with combine in phase.

A

Constructive Interference

17
Q

Occurs when two waves combine out of phase

A

Destructive interference

18
Q

Bending of waves when they pass it through a slip or aperture.

19
Q

Process of “bouncing back” of a beam of light waves after it strikes the surface.

20
Q

The bending of waves when they pass from one on other medium.

21
Q

The transfer of energy of waves in to matter. This manifested by the lowering of intensity after the wave passes through an object.

22
Q

Occurs when light is absorbed by matter, and it is re-emitted in different directions. This phenomenon can be observed in daytime light.

23
Q

Classical physics claims that the intensity of light be committed by a heated body called a____________ increase towards infinity as temperature increased

24
Q

The limitation of the classical model at lower wavelength is called the______________.

A

Ultraviolet catastrophe

25
Came up with a theory as healing to the phenomenon of ultraviolet catastrophe.
Max Planck
26
He propose that the energy that an atom or molecule can absorb or emit are multiples of an energy value which hair referred to ask **quantum**.
Max Planck
27
An atom or molecule can absorb or are multiple of an energy value.
Quantum
28
In the blank’s quantum theory, the energy associated with a quantum can be represented mathematically as:
E=hv
29
He observed the phenomenon called photoelectric effect.
Heinrich Hertz
30
Electrons can be ejected from a metal surface if life is eradicated on it, provided that the light has a frequency that exceeds the threshold frequency that is characteristic to the metal.
Photoelectric Effect
31
In 1905 he introduced that light consist of quanta or particles called photons
Albert Einstein
32
Light consist of oscillating waves
Light as a Wave
33
Light consist of particles called photons.
Light as a Particle