What is a common 1st indicator of an approaching thunderstorm?

Air flows upward in the wick of a lantern because of the liquid property called

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 .

Directions: count the number of atoms. ar co2 na3po4 so3 nac2h3o2