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The periodic table

The periodic table. Calcium. Atomic number : 20 Atomic weight : 40.078 Melting Point : 839 C Boiling Point: 1484 C Electron Configuration : [Ar]4s2 Common Ion : Ca+2 Percent by Mass in Body : 1.5. Calcium. Zinc. Atomic Number : 30 Mass Number : 65.39 Melting pt : 420ºC

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The periodic table

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  1. The periodic table

  2. Calcium • Atomic number: 20 • Atomic weight: 40.078 • Melting Point: 839 C • Boiling Point: 1484 C • Electron Configuration: [Ar]4s2 • Common Ion: Ca+2 • Percent by Mass in Body: 1.5

  3. Calcium

  4. Zinc • Atomic Number : 30 • Mass Number: 65.39 • Melting pt: 420ºC • Boiling pt: 907ºC • Electron Configuration: [Ar] 4s²3d^10 • Oxidation States: +2 • Percent by mass in Body: <.05

  5. Zinc

  6. Alkaline Earth Metals • Occur naturally only in compounds. • React with water to produce alkaline solutions • All alkaline earth elements have an oxidation number of +2, making them very reactive. • They are all metals with a shiny, silvery-white color

  7. Transition Elements • All are metals and most occur naturally in combination with other elements. • These elements are very hard, with high melting points and boiling points. • High electrical conductivity • Positive oxidation states • Very hard

  8. Why Zinc is different • Since it only forms one oxidation state, it doesn’t have the ability to produce color. • It doesn’t have the usually high melting and boiling points that most transition metals do, therefore it isn’t the best conductor of electricity like its other group members.

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