# Electron Configuration Worksheet of goodness ```Electron Configuration Worksheet of
goodness
Chemist name___
1. Write the electron configurations for the following elements:
a. Li
b. Na
c. K
What do these all have in common?
2.
a. Co
b. Ni
c. Zn
What do these have in common?
3.
a. Clb. Ar
c. K+
What do you notice about these 3?
4. Write the noble gas configurations for the following:
a. Sn
b. Mo
c. P
3-
d. Cs+
Energy, wavelength and frequency problems: Electron Math
Name
c=3.0 x 108 m/s c= λ* ν E= ν *h
λ=wavelength (m or nm 1 nm=1x10-9m)
ν=frequency (hertz, 1/s or s-1`)
E=energy (joules)
h=plancks constant =6.63x10-34 J*s
1. The yellow light given off by a sodium
vapor lamp used for public lighting has a
wavelength of 589 nm. What is the frequency
2. A certain microwave has a wavelength of
0.032 meters. Calculate the frequency of this
microwave.
of 590 KHz. What is the wavelength of the
4. Microwave ovens emit microwave energy
with a wavelength of .129 m. What is the
energy of exactly one photon of this
5. Calculate the energy of one photon of
yellow light that has a wavelength of 589nm.
6. What is the energy of a photon whose
frequency is 3.0 X 1012 Hz?
7. A red light has a wavelength of 728 nm.
What is the frequency of the light?
What is the speed of the wave in m/s?
8. You broke your big toe! The x ray they
take of the toe uses waves that have a
length of .01 nm.
What is the speed of the wave in m/s?
What is the wavelength in nm?
What is the frequency of the x ray?
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