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Published byBasil Washington Modified over 9 years ago
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Helium By: daisy aguilar & Tatyuna Hill
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Element Element name : Helium Element symbol: He. Atomic number : 2 Atomic mass is: 4.0026
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How it’s used? Filling up balloons.. Inflate blimps… Neon signs…..
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Solid, Liquid or Gas ? Family name?? Solid, liquid, gas noble this re they are part of the noble gasses. Family name the noble gasses.
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Facts about Helium The atomic number of helium is 2, meaning each atom of helium has two protons. Helium is the second-lightest element. Most Helium is obtained by extracting it from natural gas Helium is the second- least reactive noble gas. Helium is monatomic under standard conditions.
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Who discovered it….. (when and who)? Who discovered it?: Pierre Janssen When was it discovered?: 1868 Physical, chemical properties: helium is a colorless, odorless and insipid… Helium is the second lightest element…. Helium is the second element in the known universe….. Its less soluble in water than in any other element… The density of helium is very low…
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