how to Determine the energy of the photon absorbed when an electron in a hydrogen atom jumps from the ground state N

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

When balancing a chemical equation:

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.