The a planet is from the sun, the it takes the planet to revolve around the sun. Making the “year” for that planet .

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.

Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .

The energy released by a nuclear fusion reaction is produced when