What is the X in X-mas?
electronegative e·lec·tro·neg·a·tive (ĭ-lěk'trō-něg'ə-tĭv)
Having a negative electric charge.
Tending to attract electrons to form a chemical bond.
Capable of acting as a negative electrode.
in chemistry, the ability of an atom to attract to itself an electron pair shared with another atom in a chemical bond