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 of this radiation? 2. A certain microwave has a wavelength of 0.032 meters. Calculate the frequency of this microwave. 3. A radio station broadcasts at a frequency of 590 KHz. What is the wavelength of the radio waves? (1 kHz =1000Hz) 4. Microwave ovens emit microwave energy with a wavelength of .129 m. What is the energy of exactly one photon of this microwave radiation? 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?