Which element has a 2p sublevel that contains 4 electrons? -Praseodymium
-Oxygen
-Chromium
-Sulfur

Your friend offers to show you an intrusive igneous rock. which of the following would you expect to see?

How would you reduce the volume of gas

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.