Which of these are sources of ionizing radiation? dental x -rays

cell phones

a microwave oven

a nuclear power plant

the sun

cosmic rays

Dalton’s model of an atom is the best described as a) a solar system b) a solid sphere c) a cloud d) a scoop of chocolate chip ice cream

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 .

What is a subatomic particle with a negative charge and very little mass?