What’s the most important thing in life?

in my opinion the most important thing in my life is A healthy, loved, happy, spiritually rich, well-read, self-sufficient, fearless, determined you. Have that version of yourself as your life's vision, and never stop chasing it.

bohr developed the bohr model of the atom, in which he proposed that energy levels of electrons are discrete and that the electrons revolve in stable orbits around the atomic nucleus but can jump from one energy level (or orbit) to another.