Chemistry comic strip

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  • In 1869, the chemist Dmitri Mendeleev began developing the periodic table. Who knows what he arranged the elements by?
  • Well then why is today's modern periodic table arranged by atomic number?
  • By atomic mass! He also left spaces for newly discovered elements.
  • Well that's because in 1913, Henry Moseley created a new periodic table arranged by atomic number. It was filled with families, or groups, that contained elements with similar properties.
  • How do these families, or groups, work anyway?
  • Well for example group 1 is the alkali metals, group 2 is the alkaline earth metals, and group 18 is composed of six noble gas elements.
  • Well now I understand the periodic table and its elements better!
  • And the the rest of the table is made up of transition metals, metalloids, nonmetals, and halogens.
  • I would tell you all a periodic table joke but they Ar-gon!
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