Ch 9 Flashcards

(34 cards)

1
Q

The number of waves produced per unit time

A

Frequency

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2
Q

What 2 things are inversely proportional

A

Wavelength and frequency

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3
Q

Tells how fast waves travel through space

A

Speed

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4
Q

Travels through space as electromagnetic radiation

A

Energy

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5
Q

Radiation that takes many forms, such as sunlight, microwaves, radio waves, etc.

A

Electromagnetic radiation

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6
Q

All electromagnetic waves travel at the speed of light and differ from each other in their frequency and wavelength

A

Vacuum

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7
Q

The classification of electromagnetic waves according to their frequency is called

A

Electromagnetic spectrum

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8
Q

Scientist also have much evident enough that light beams act as a stream of tiny particles called

A

Photons

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9
Q

The distance between any 2 successive crests of troughs

A

Wavelength

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10
Q

When atoms are energized, they often reemit the energy as _____
Give an example

A

Light

Neon lights

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11
Q

The absorption and emission of light is due to what

What happens as a result of this

A

Due to the interaction of light with the electrons in the atom

As a result, atoms of different elements exhibit a unique color and wavelength of light

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12
Q

A danish physicist, studied the hydrogen atom extremely, an developed a model for the atom that was able to explain the line spectrum

A

Neil’s Bohr

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13
Q

Atoms consist of electrons orbiting the nucleus at different distances from the nucleus, called

A

Energy levels

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14
Q

A model of the atom consisted of electrons orbiting the nucleus at different distance from the nucleus, called energy levels. In this model, the electron could only occupy particular energy levels, and could “jump” to higher level by absorbing energy

A

Bohr’s model

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15
Q

What is the lowest energy level

A

Ground state

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16
Q

What is the higher energy levels called

A

Excited state

17
Q

When electrons absorb energy though heating or electricity, they move to (higher/lower) energy levels and the levels become excited

18
Q

What happens when excited electrons return to the ground state

A

Energy is emitted as a photon of light is released

19
Q

How is the color of light determined

A

Its determined by the difference in energy

20
Q

What is produced by many of transitions between excited and ground states

A

Atomic spectrum

21
Q

Who created a mathematical model that showed electrons as both particles and waves

A

Erwin Shrodinger

22
Q

What did Erwin Shrodinger create

A

He created the quantum mechanical model

23
Q

The quantum mechanical model predicted electrons to be located in a probability region called _____

24
Q

What is defined as a region around the nucleus where there is a high probability of finding an electron

25
Each principal energy level is subdivided into what
Sub levels
26
The sub levels are designated by the letters __, __, __, & __
S, p, f & d
27
``` What is the number of orbitals within the sub levels vary with there type S sub levels=? Orbitals P sub level=? Orbitals D sub level =? Orbitals F sub level =? Orbitals ```
S=1 P=3 D=5 F=7
28
What is the max number of electrons an orbital can hold
2
29
Similarities of behavior in the periodic table are due to the similarities in the electron arrangement of the atoms. What is the arrangement called
Electron configuration
30
Each orbital can be occupied by no more than 2 electrons, each with the (opposite/same) spin
Opposite
31
The electrons occupy the orbital from the lowest energy level to the highest level. The energy of the orbitals on any level are in the following order A. S

A. S

32
What is the horizontal rows in the periodic table called
Periods
33
The vertical columns in the periodic table are called ____ or ____
Groups or families
34
What is the outermost filled energy level called
Valence electrons