Word Roots
an- = not (anion: a negatively charged ion)
co- = together; -valent = strength (covalent bond: an attraction between atoms that share one or more pairs of outer-shell electrons)
electro- = electricity (electronegativity: the tendency for an atom to pull electrons towards itself)
iso- = equal (isotope: an element having the same number of protons and electrons but a different number of neutrons)
neutr- = neither (neutron: a subatomic particle with a neutral electrical charge)
pro- = before (proton: a subatomic particle with a single positive electrical charge)
