how much energy is required to ionise a H atom if the electron occupies n = 5 orbit ? compare your answer with the ionization enthalpy of H atom (energy required to remove the electron from n - 1 orbit)

Chemical energy is a form of a. kinetic energy only. b. both potential and kinetic energy. c. neither potential nor kinetic energy. d. potential energy only. reset

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.