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 Hydrogen named from the Greek words for "water former."  Discovered by Henry Cavendish in 1766.

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Presentation on theme: " Hydrogen named from the Greek words for "water former."  Discovered by Henry Cavendish in 1766."— Presentation transcript:

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2  Hydrogen named from the Greek words for "water former."  Discovered by Henry Cavendish in 1766

3  The Hydrogen symbol on the periodic table is H  The Atomic number is 1  The atomic mass is 1.008

4  1 Proton  1 Electron  0 Neutrons

5  melting point is -434.5°F  boiling point is -423.2°F  Freezing point -434.5°F

6  Hydrogen is a NON-METAL  Hydrogen is not an Alkali Metal  It is grouped with the alkali metals because it has a similar outer shell electron configuration as they do.  Hydrogen is something of an oddball among elements

7  Hydrogen Peroxide.  Hydrogen makes up ¼ of the air  Hydrogen is in many carbs that we eat.  Some volcanoes and oil wells may release small amounts of hydrogen.

8  Hydrogen is colorless, odorless, and gaseous, element  When Hydrogen is subject to a pressure 500,000 times greater than that of the earth's atmosphere, hydrogen becomes a solid with metallic properties.  About 7.8 million metric tons of hydrogen are produced in the United States today, enough to power 20-30 million cars or 5-8 million homes.

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10  Companies should buy this element because it is a very useful source. You can use it in many ways.


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