What happens to the electron when the photon is absorbed? Select one:
a. The electron moved to the n=2 orbital.
b. Nothing happened to it.
c. It disappeared.
d. The electron changed color.

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.

Reactions in cells take place at about a. 40°c b. 0° c. 100°c d. 60°c