Based on the data gathered in millikan's oil-drop experiments, the concept of atomic structure was modified. which of the following aspects of the structure of the atom was validated by these experiments? 1.mass of the atom2.mass of an electron3.charge on an electron4.charge on a proton5. mass of a proton

What shape would a molecule with two bound groups and two lone pairs have?

How does the motion of particles in a gas change as the gas cools

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.