Flashcards in Ch 9 Deck (34)
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1
The number of waves produced per unit time
Frequency
2
What 2 things are inversely proportional
Wavelength and frequency
3
Tells how fast waves travel through space
Speed
4
Travels through space as electromagnetic radiation
Energy
5
Radiation that takes many forms, such as sunlight, microwaves, radio waves, etc.
Electromagnetic radiation
6
All electromagnetic waves travel at the speed of light and differ from each other in their frequency and wavelength
Vacuum
7
The classification of electromagnetic waves according to their frequency is called
Electromagnetic spectrum
8
Scientist also have much evident enough that light beams act as a stream of tiny particles called
Photons
9
The distance between any 2 successive crests of troughs
Wavelength
10
When atoms are energized, they often reemit the energy as _____
Give an example
Light
Neon lights
11
The absorption and emission of light is due to what
What happens as a result of this
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
12
A danish physicist, studied the hydrogen atom extremely, an developed a model for the atom that was able to explain the line spectrum
Neil's Bohr
13
Atoms consist of electrons orbiting the nucleus at different distances from the nucleus, called
Energy levels
14
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
Bohr's model
15
What is the lowest energy level
Ground state
16
What is the higher energy levels called
Excited state
17
When electrons absorb energy though heating or electricity, they move to (higher/lower) energy levels and the levels become excited
Higher
18
What happens when excited electrons return to the ground state
Energy is emitted as a photon of light is released
19
How is the color of light determined
Its determined by the difference in energy
20
What is produced by many of transitions between excited and ground states
Atomic spectrum
21
Who created a mathematical model that showed electrons as both particles and waves
Erwin Shrodinger
22
What did Erwin Shrodinger create
He created the quantum mechanical model
23
The quantum mechanical model predicted electrons to be located in a probability region called _____
Orbitals
24
What is defined as a region around the nucleus where there is a high probability of finding an electron
An orbital
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
