protons have a positive charge, along with neutrons,are in the nucleus. electrons have a negative charge, also in the nucleus.
Friday, February 27, 2009
Friday, February 20, 2009
into on chemistry
def of chemistry- the sicence of matter the branch of the natural sciences.
fields; organic/inorganic/phsical/bio/analytical/theorctical/matrials/nucler/
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