HURRY BRAINLIEST IF CORRECT 2. Red light has a wavelength of 700 nm and a frequency of 4.3 x 1014 s-1. What is the energy of a single photon of red light?
a. 2.85 x 10-34 J
b. 2.85 x 10-19 J
c. 2.85 x 1019 J
d. 2.85 x 10-20 J

4. What is the difference between the ionization energy of inner-shell electrons and the ionization energy of outer-shell electrons?
a. They are equal to each other.
b. The ionization energy of inner-shell electrons is less than the ionization energy of outer-shell electrons.
c. The ionization energy of inner-shell electrons changes with respect to the ionization energy of outer-shell electrons.
d. The ionization energy of inner-shell electrons is greater than the ionization energy of outer-shell electrons.

8. What does the photoelectric effect show about the connection between light and electrons?
a. Electrons are composed of light.
b. Light can remove electrons from atoms.
c. It takes 2 photons of light to cause 1 electron to begin flowing.
d. Light is composed of electrons.

9. In which unit is the wavelength of an electromagnetic wave commonly measured?
a. J
b. nm
c. s–1
d. kg