A.) Calculate the energy in joules of a photon of radiation whose wavelength is 419 nm . Express your answer with the appropriate units.

B.) What wavelength (in meters) of radiation has photons of energy 6.20×10−19 J ?
Express your answer with the appropriate units.

yes they ca   is ur ansswerrr

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).

6.4 cm (max) - 25 cm (min)

you need to have a picture of the atom that way we can answer it