What is ejected from an atom in a photoelectric interaction?

An ion can be which of the following?

An x-ray beam has a wavelength of 0.15 nm. What is its energy in kVp? (Hint: in the kVp formulation λ in angstroms or 10^-10 meters)

If a photon of ultraviolet light has an energy of 3.7 x 10^-19 J, what is its frequency?

An atom’s atomic mass number is given by what?

The energy of a photon is directly proportional to:

High energy x-rays mostly behave like a __________, while visible light (low-energy) mostly behaves like a _____________.

Why can ionization be biologically damaging?

The use of fire to cook food likely led to the reduction in ___ size. Select all that apply.

Tell me about lice, speciation, and how that helps with estimates of when hominins lost a majority of their body hair.