In order for a theory to be considered valid it must be 1 observed at least one time 2 recorded 3 repeatable 4 inferred from personal interpretation plz thnx ; )

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

In apex! a liquid heated beyond a certain temperature becomes

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.