Which characteristic is given by the principal quantum number?
orbital size
orbital mass
orbital shape
orbital orientation

- decrease the number of plants and animals living in the water.

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.