Excitation of electrons

[manasa933]

If 1 million photons in the UV region are absorbed by a hydrogen gas sample how many electrons are excited to a higher energy level?

a.zero
b.500,00
c.1
d.1 million

[Chem_Mod]

Is there one specific part of this question that you would like more information about?

[AtreyiMitra2L]

1 million electrons would be excited to a higher energy level. The photoelectric effect shows how photons can act as particles. Because each has a sufficient wavelength (as noted by the fact they are in the UV region), all should be excited.

[SitharaMenon2B]

1 million electrons is correct because each photon interacts with one electron, and a photon will only be absorbed if it has enough energy to excite an electron, so for every photon that is absorbed, one electron is excited.

[Christy Zhao 1H]

Adding on, one photon interacts with one electron, and each photon must have enough energy to eject one electron to be absorbed. So if 1 million photons are absorbed, 1 million electrons are excited to a higher energy level.

[Diane Bui 2J]

There is a 1 to 1 interaction between the photon and the electron! So 1 million electrons would be excited.