Can we move only one electron from its orbit to another orbit of lower energy without moving other electrons of the atom? well i think it cannot happen but if it can happen pls tell how

Acycloalkane molecule contains 8 carbon atoms. how many hydrogen atoms are present in the molecule?

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume