Question

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a) a union of, two, a molecule, be, may, more, or, atoms.
b) atom, hydrogen, every, has, proton, one, a nucleus, of.
c) the, of, nucleus, the negative, electron, charge, neutrolizes, charge, the
positive, the

Answer 1

a) A molecule may be  a union of two or more atoms.
b) Every hydrogen atom has a nucleus of one proton.
c) The negative charge of the electron neutrolizes the positive charge of
 the nucleus.
c) The negative electron charge neutrolizes the positive charge of
 the nucleus.