Electromagnetic Spectrum
Between gamma rays and microwaves, which wave has the longer wavelength?
microwaves
What are the three units used for frequency?
Hz, s-1, 1/s
Which element is represented by the following electron configuration?
1s2 2s2 2p6 3s2 3p6 4s2 3d10
Zinc, Zn
Which principle states that electrons will spin opposite directions when paired in an orbital?
Pauli Exclusion Principle
How many valence electrons does carbon (C) have?
4
The measurement from crest to crest, trough to trough, or any two identical points on a wave is called the _____________.
wavelength
If a wavelength is known to be 680nm, what is its frequency?
4.41 x 1014 Hz
List the energy levels from lowest energy to highest energy from 1s through 4p.
1s 2s 2p 3s 3p 4s 3d 4p
Which rule states that electrons will fill empty orbitals before sharing an orbital?
Hund's Rule
Which of the following does NOT have 6 valence electrons?
Oxygen, Selenium, Phosphorus, Sulfur
Phosphorus
What are the colors of the visible spectrum from lowest to highest energy?
LOW - Red, Orange, Yellow, Green, Blue, Violet - HIGH
How is a photon created?
When an electron falls from excited state to ground state it releases a photon.
What is the electron configuration for Gallium, Ga?
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p1
Which rule states that electrons will fill the lowest energy level first?
Aufbau's Rule
Where are valence electrons located?
The outermost shell or the outermost energy level or the highest energy level
Which type of radiation is the fastest?
They all move the same speed!
Visible light has a wavelength of 380nm-780nm. If the frequency of light is known to be 4.65x1012 s-1, what is the wavelength, AND is the light visible?
6.45x104nm, no it is not visible
What is the electron configuration for Xenon, Xe?
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6
In the orbital diagram for Boron, how many empty orbitals are there?
2 empty orbitals
What are two elements with 7 valence electrons?
Fluorine, Chlorine, Bromine, Iodine, Astatine
Compare energy, frequency, and wavelength for Ultra Violet light and Gamma Rays.
Gamma Rays have higher energy, higher frequency, and shorter wavelength than ultra violet light.
Ultra Violet light has lower energy, lower frequency, and longer wavelength than Gamma rays.
A green light has a wavelength of 500 nm, what is the energy of this wave?
3.98 x 10-19 J
**DOUBLE POINTS**
How many electrons fit in the 3rd energy level?
18
3s - 2
3p - 6
3d - 10
In the orbital diagram for Nitrogen, how many empty orbitals, half-full orbitals, and full orbitals are present?
Full: 2
Half-Full: 3
Empty: 0
Which energy level are sulfurs (S) valence electrons in?
The third energy level, 3