Which is the correct formula for phosphorus pentachloride? pcl4 because a subscript of 4 indicates four cl atoms pcl5 because a subscript of 5 indicates five cl atoms p5cl because a subscript of 5 indicates five p atoms p5cl3 because a subscript of 5 indicates five p atoms

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.