Preparing for your acs examination in general chemistry the official guide isbn 9780830005444 kostenloser versand fur alle bucher mit versand und verkauf duch amazon. 1 preparing for your acs examination in general chemistry questions for general chemistry i from the official guide atomic structure introduction questions 1 an atom of strontium 90 sr 90 38 contains a 38 electrons 38 protons 52 neutrons b 38 electrons 38 protons 90 neutrons c 52 electrons 52 protons 38 neutrons d 52 electrons 38 protons 38 neutrons 2. Preparing for your acs examination in general chemistry the official guide isbn 9780970804204 kostenloser versand fur alle bucher mit versand und verkauf duch amazon. Preparing for your acs examination in general chemistry the official guide item preview remove circle share or embed this item embed embed for wordpresscom hosted blogs and archiveorg item description tags want more advanced embedding details examples and help . Preparing for your acs examination in general chemistry the official guide paperback january 1 2018 46 out of 5 stars 61 ratings see all formats and editions hide other formats and editions