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7 Scientific Discovery topics matching:
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| x name | x image | x Discovered By | x Date Discovered | x Discovery Location | x article |
| x Hydrogen |
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Henry Cavendish | 1766 | England |
Hydrogen (pronounced /ˈhaɪdrɵdʒɨn/, HYE-dro-jin) is the chemical element with atomic number 1. It is represented by the symbol H. At standard temperature and pressure, hydrogen is a colorless, odorless, nonmetallic, tasteless, highly flammable...
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| x Helium |
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Nils Langet | 1895 | Scotland |
Helium (pronounced /ˈhiːliəm/, HEE-lee-əm) is the chemical element with atomic number 2, and is represented by the symbol He. It is a colorless, odorless, tasteless, non-toxic, inert monatomic gas that heads the noble gas group in the periodic table...
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| William Ramsay | Sweden | ||||
| Per Teodor Cleve | |||||
| x Lithium |
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Johan August Arfwedson | 1817 |
Lithium (pronounced /ˈlɪθiəm/, LITH-ee-əm) is a soft, silver-white metal that belongs to the alkali metal group of chemical elements. It is represented by the symbol Li, and it has the atomic number three. Under standard conditions it is the...
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| x Beryllium |
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Friedrich Wöhler | 1798 | Germany |
Beryllium (pronounced /bəˈrɪliəm/, bə-RIL-ee-əm) is the chemical element with the symbol Be and atomic number 4.
A bivalent element, beryllium is found naturally only combined with other elements in minerals. Notable gemstones which contain...
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| Antoine Bussy | France | ||||
| x Boron |
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Humphry Davy | 1808 | England |
Boron (pronounced /ˈbɔrɒn/) is the chemical element with atomic number 5 and the chemical symbol B. Boron is a trivalent metalloid element which occurs abundantly in the evaporite ores borax and ulexite.
Several allotropes of boron exist: amorphous...
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| Joseph Louis Gay-Lussac | France | ||||
| Louis Jacques Thénard | |||||
| x Nitrogen |
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Daniel Rutherford | 1772 | Scotland |
Nitrogen (pronounced /ˈnaɪtrɵdʒɨn/ NYE-tro-jin) is a chemical element that has the symbol N and atomic number 7 and atomic mass 14.00674 u. Elemental nitrogen is a colorless, odorless, tasteless and mostly inert diatomic gas at standard conditions,...
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| x Oxygen |
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Joseph Priestley | 1774 | England |
Oxygen (pronounced /ˈɒksɨdʒɨn/, OK-si-jin, from the Greek roots ὀξύς (oxys) (acid, literally "sharp", from the taste of acids) and -γενής (-genēs) (producer, literally begetter) is the element with atomic number 8 and represented by the symbol O. It...
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| Carl Wilhelm Scheele | Sweden | ||||