Once they are big enough, they crawl out of the water and the adult stage emerges from the skin of the nymph. Once they have transformed into the winged adult stage, the stop growing. Most dragonfly species spend the winter as nymphs in the water, but some migrate south, and spend the winter as adults. In few species that lay their eggs in the late summer or fall, the eggs don't hatch until spring. Dragonflies emerge from the water in the warm months of spring or summer.
Orbital Definition. In chemistry and quantum mechanics, an orbital is a mathematical function that describes the wavelike behavior of an electron, electron pair, or (less commonly) nucleons. An orbital may also be called an atomic orbital or electron orbital.
Recall that the quantum mechanical model of the atom yields wave functions and corresponding energies called orbitals that each describe a specific pattern of electron density, meaning each orbital has a specific shape and energy. 1  There are three quantum numbers that are used to describe an orbital: