When electrons absorb energy they are able to
a. move from exited states down to their ground states. b.move from their ground states up to excited states. c.attach to the nucleus. d.form a bond with the nearest proton.?

Determine the empirical formula of a compound containing 40.6 grams of carbon, 5.1 grams of hydrogen, and 54.2 grams of oxygen. in an experiment, the molar mass of the compound was determined to be 118.084 g/mol. what is the molecular formula of the compound? for both questions, show your work or explain how you determined the formulas by giving specific values used in calculations.

Bohr's model could only explain the spectra of which type of atoms? single atoms with one electron single atoms with more than one electron bonded atoms with one electron bonded atoms with more than one electron

Needthe meter is the standard unit for: 1) height 2) length 3) weight 4) mass