1. Calculate the wavelength and energy of light that has a frequency of 1.78 x 10^15 Hz.
2. A photon of light has a wavelength of 0.034 cm. Calculate its energy. (Don't forget to convert cm to meters)
3. The wavelength of green light from a traffic signal is centered at 5.45 x 10^-5 cm. Calculate the frequency
4. Calculate the frequency of light that has a wavelength of 9.75 x 10^-7 m.
5. Calculate the energy and frequency of red light having a wavelength of 6.55 x 10^-5 cm.

b) nuclear ive learned that in a pedtrodic table

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally