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

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Presentation transcript:

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

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

 1 Proton  1 Electron  0 Neutrons

 melting point is °F  boiling point is °F  Freezing point °F

 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

 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.

 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 million cars or 5-8 million homes.

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