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![]() | Parent Directory | - | ||
![]() | 001-Hydrogen.pdf | 2020-01-24 19:38 | 67K | |
![]() | 002-Helium.pdf | 2020-01-24 19:38 | 71K | |
![]() | 003-Lithium.pdf | 2020-01-24 19:38 | 67K | |
![]() | 004-Beryllium.pdf | 2020-01-24 19:38 | 96K | |
![]() | 005-Boron.pdf | 2020-01-24 19:38 | 70K | |
![]() | 006-Carbon.pdf | 2020-01-24 19:38 | 73K | |
![]() | 007-Nitrogen.pdf | 2020-01-24 19:38 | 68K | |
![]() | 008-Oxygen.pdf | 2020-01-24 19:38 | 69K | |
![]() | 009-Fluorine.pdf | 2020-01-24 19:38 | 68K | |
![]() | 010-Neon.pdf | 2020-01-24 19:38 | 69K | |
![]() | 011-Sodium.pdf | 2020-01-24 19:38 | 70K | |
![]() | 012-Magnesium.pdf | 2020-01-24 19:38 | 73K | |
![]() | 013-Aluminium.pdf | 2020-01-24 19:38 | 71K | |
![]() | 014-Silicon.pdf | 2020-01-24 19:38 | 70K | |
![]() | 015-Phosphorus.pdf | 2020-01-24 19:38 | 72K | |
![]() | 016-Sulfur.pdf | 2020-01-24 19:38 | 72K | |
![]() | 017-Chlorine.pdf | 2020-01-24 19:38 | 71K | |
![]() | 018-Argon.pdf | 2020-01-24 19:38 | 72K | |
![]() | 019-Potassium.pdf | 2020-01-24 19:38 | 72K | |
![]() | 020-Calcium.pdf | 2020-01-24 19:38 | 71K | |
![]() | 021-Scandium.pdf | 2020-01-24 19:38 | 71K | |
![]() | 022-Titanium.pdf | 2020-01-24 19:38 | 71K | |
![]() | 023-Vanadium.pdf | 2020-01-24 19:38 | 73K | |
![]() | 024-Chromium.pdf | 2020-01-24 19:38 | 72K | |
![]() | 025-Manganese.pdf | 2020-01-24 19:38 | 70K | |
![]() | 026-Iron.pdf | 2020-01-24 19:38 | 77K | |
![]() | 027-Cobalt.pdf | 2020-01-24 19:38 | 55K | |
![]() | 028-Nickel.pdf | 2020-01-24 19:38 | 56K | |
![]() | 029-Copper.pdf | 2020-01-24 19:38 | 53K | |
![]() | 030-Zinc.pdf | 2020-01-24 19:38 | 49K | |
![]() | 031-Gallium.pdf | 2020-01-24 19:38 | 55K | |
![]() | 032-Germanium.pdf | 2020-01-24 19:38 | 52K | |
![]() | 033-Arsenic.pdf | 2020-01-24 19:38 | 54K | |
![]() | 034-Selenium.pdf | 2020-01-24 19:38 | 49K | |
![]() | 035-Bromine.pdf | 2020-01-24 19:38 | 50K | |
![]() | 036-Krypton.pdf | 2020-01-24 19:38 | 50K | |
![]() | 037-Rubidium.pdf | 2020-01-24 19:38 | 55K | |
![]() | 038-Strontium.pdf | 2020-01-24 19:38 | 50K | |
![]() | 039-Yttrium.pdf | 2020-01-24 19:38 | 52K | |
![]() | 040-Zirconium.pdf | 2020-01-24 19:38 | 51K | |
![]() | 041-Niobium.pdf | 2020-01-24 19:38 | 49K | |
![]() | 042-Molybdenum.pdf | 2020-01-24 19:38 | 51K | |
![]() | 043-Technetium.pdf | 2020-01-24 19:38 | 54K | |
![]() | 044-Ruthenium.pdf | 2020-01-24 19:38 | 76K | |
![]() | 045-Rhodium-1.pdf | 2020-01-24 19:38 | 51K | |
![]() | 046-Palladium.pdf | 2020-01-24 19:38 | 52K | |
![]() | 047-Silver.pdf | 2020-01-24 19:38 | 55K | |
![]() | 048-Cadmium.pdf | 2020-01-24 19:38 | 54K | |
![]() | 049-Indium.pdf | 2020-01-24 19:38 | 50K | |
![]() | 050-Tin.pdf | 2020-01-24 19:38 | 49K | |
![]() | 051-Antimony.pdf | 2020-01-24 19:38 | 49K | |
![]() | 052-Tellurium.pdf | 2020-01-24 19:38 | 51K | |
![]() | 053-Iodine-1.pdf | 2020-01-24 19:38 | 49K | |
![]() | 054-Xenon.pdf | 2020-01-24 19:38 | 49K | |
![]() | 055-Caesium.pdf | 2020-01-24 19:38 | 51K | |
![]() | 056-Barium.pdf | 2020-01-24 19:38 | 53K | |
![]() | 057-Lanthanum.pdf | 2020-01-24 19:38 | 51K | |
![]() | 058-Cerium.pdf | 2020-01-24 19:38 | 51K | |
![]() | 059-Praseodymium.pdf | 2020-01-24 19:38 | 54K | |
![]() | 060-Neodymium.pdf | 2020-01-24 19:38 | 51K | |
![]() | 061-Promethium.pdf | 2020-01-24 19:38 | 50K | |
![]() | 062-Samarium.pdf | 2020-01-24 19:38 | 52K | |
![]() | 063-Europium.pdf | 2020-01-24 19:38 | 56K | |
![]() | 064-Gadolinium.pdf | 2020-01-24 19:38 | 52K | |
![]() | 065-Terbium.pdf | 2020-01-24 19:38 | 52K | |
![]() | 066-Dysprosium.pdf | 2020-01-24 19:38 | 49K | |
![]() | 067-Holmium.pdf | 2020-01-24 19:38 | 51K | |
![]() | 068-Erbium.pdf | 2020-01-24 19:38 | 51K | |
![]() | 069-Thulium.pdf | 2020-01-24 19:38 | 58K | |
![]() | 070-Ytterbium.pdf | 2020-01-24 19:38 | 54K | |
![]() | 071-Lutetium.pdf | 2020-01-24 19:38 | 51K | |
![]() | 072-Hafnium.pdf | 2020-01-24 19:38 | 51K | |
![]() | 073-Tantalum.pdf | 2020-01-24 19:38 | 53K | |
![]() | 074-Tungsten.pdf | 2020-01-24 19:38 | 52K | |
![]() | 075-Rhenium.pdf | 2020-01-24 19:38 | 51K | |
![]() | 076-Osmium.pdf | 2020-01-24 19:38 | 50K | |
![]() | 077-Iridium.pdf | 2020-01-24 19:38 | 50K | |
![]() | 078-Platinum.pdf | 2020-01-24 19:38 | 51K | |
![]() | 079-Gold.pdf | 2020-01-24 19:38 | 50K | |
![]() | 080-Mercury.pdf | 2020-01-24 19:38 | 53K | |
![]() | 081-Thallium.pdf | 2020-01-24 19:38 | 53K | |
![]() | 082-Lead.pdf | 2020-01-24 19:38 | 52K | |
![]() | 083-Bismuth.pdf | 2020-01-24 19:38 | 49K | |
![]() | 084-Polonium.pdf | 2020-01-24 19:38 | 54K | |
![]() | 085-Astatine.pdf | 2020-01-24 19:38 | 52K | |
![]() | 086-Radon.pdf | 2020-01-24 19:38 | 50K | |
![]() | 087-Francium.pdf | 2020-01-24 19:38 | 54K | |
![]() | 088-Radium.pdf | 2020-01-24 19:38 | 50K | |
![]() | 089-Actinium.pdf | 2020-01-24 19:38 | 51K | |
![]() | 090-Thorium.pdf | 2020-01-24 19:38 | 51K | |
![]() | 091-Protactinium.pdf | 2020-01-24 19:38 | 50K | |
![]() | 092-Uranium.pdf | 2020-01-24 19:38 | 58K | |
![]() | 093-Neptunium.pdf | 2020-01-24 19:38 | 50K | |
![]() | 094-Plutonium.pdf | 2020-01-24 19:38 | 52K | |
![]() | 095-Americium.pdf | 2020-01-24 19:38 | 50K | |
![]() | 096-Curium.pdf | 2020-01-24 19:38 | 51K | |
![]() | 09718-IYPTCHEMORIGINS.pdf | 2020-01-24 19:38 | 1.5M | |
![]() | 097-Berkelium.pdf | 2020-01-24 19:38 | 52K | |
![]() | 098-Californium.pdf | 2020-01-24 19:38 | 51K | |
![]() | 099-Einsteinium.pdf | 2020-01-24 19:38 | 51K | |
![]() | 100-Fermium.pdf | 2020-01-24 19:38 | 60K | |
![]() | 101-Mendelevium.pdf | 2020-01-24 19:38 | 51K | |
![]() | 102-Nobelium.pdf | 2020-01-24 19:38 | 69K | |
![]() | 103-Lawrencium.pdf | 2020-01-24 19:38 | 67K | |
![]() | 104-Rutherfordium.pdf | 2020-01-24 19:38 | 83K | |
![]() | 105-Dubnium.pdf | 2020-01-24 19:38 | 73K | |
![]() | 106-Seaborgium.pdf | 2020-01-24 19:38 | 54K | |
![]() | 107-Bohrium.pdf | 2020-01-24 19:38 | 57K | |
![]() | 108-Hassium.pdf | 2020-01-24 19:38 | 79K | |
![]() | 109-Meitnerium.pdf | 2020-01-24 19:38 | 50K | |
![]() | 110-Darmstadtium.pdf | 2020-01-24 19:38 | 57K | |
![]() | 111-Roentgenium.pdf | 2020-01-24 19:38 | 52K | |
![]() | 112-Copernicium.pdf | 2020-01-24 19:38 | 53K | |
![]() | 113-Nihonium.pdf | 2020-01-24 19:38 | 136K | |
![]() | 114-Flerovium.pdf | 2020-01-24 19:38 | 55K | |
![]() | 115-Moscovium.pdf | 2020-01-24 19:38 | 61K | |
![]() | 116-Livermorium.pdf | 2020-01-24 19:38 | 58K | |
![]() | 117-Tennessine.pdf | 2020-01-24 19:38 | 66K | |
![]() | 118-Oganesson.pdf | 2020-01-24 19:38 | 59K | |
![]() | A-timeline-of-the-discoveries-of-the-chemical-elements-Jan-2019.pdf | 2020-01-24 19:38 | 269K | |
![]() | 001-Hydrogen.png | 2020-01-24 19:44 | 93K | |
![]() | 002-Helium.png | 2020-01-24 19:44 | 97K | |
![]() | 003-Lithium.png | 2020-01-24 19:44 | 92K | |
![]() | 004-Beryllium.png | 2020-01-24 19:44 | 94K | |
![]() | 005-Boron.png | 2020-01-24 19:44 | 94K | |
![]() | 006-Carbon.png | 2020-01-24 19:44 | 107K | |
![]() | 007-Nitrogen.png | 2020-01-24 19:44 | 95K | |
![]() | 008-Oxygen.png | 2020-01-24 19:44 | 99K | |
![]() | 009-Fluorine.png | 2020-01-24 19:44 | 94K | |
![]() | 010-Neon.png | 2020-01-24 19:44 | 103K | |
![]() | 011-Sodium.png | 2020-01-24 19:44 | 96K | |
![]() | 012-Magnesium.png | 2020-01-24 19:44 | 93K | |
![]() | 013-Aluminium.png | 2020-01-24 19:44 | 103K | |
![]() | 014-Silicon.png | 2020-01-24 19:44 | 95K | |
![]() | 015-Phosphorus.png | 2020-01-24 19:44 | 105K | |
![]() | 016-Sulfur.png | 2020-01-24 19:44 | 101K | |
![]() | 017-Chlorine.png | 2020-01-24 19:44 | 99K | |
![]() | 018-Argon.png | 2020-01-24 19:44 | 98K | |
![]() | 019-Potassium.png | 2020-01-24 19:44 | 98K | |
![]() | 020-Calcium.png | 2020-01-24 19:44 | 92K | |
![]() | 021-Scandium.png | 2020-01-24 19:44 | 92K | |
![]() | 022-Titanium.png | 2020-01-24 19:44 | 86K | |
![]() | 023-Vanadium.png | 2020-01-24 19:44 | 88K | |
![]() | 024-Chromium.png | 2020-01-24 19:44 | 91K | |
![]() | 025-Manganese.png | 2020-01-24 19:44 | 88K | |
![]() | 026-Iron.png | 2020-01-24 19:44 | 95K | |
![]() | 027-Cobalt.png | 2020-01-24 19:44 | 96K | |
![]() | 028-Nickel.png | 2020-01-24 19:44 | 83K | |
![]() | 029-Copper.png | 2020-01-24 19:44 | 86K | |
![]() | 030-Zinc.png | 2020-01-24 19:44 | 80K | |
![]() | 031-Gallium.png | 2020-01-24 19:44 | 103K | |
![]() | 032-Germanium.png | 2020-01-24 19:44 | 97K | |
![]() | 033-Arsenic.png | 2020-01-24 19:44 | 103K | |
![]() | 034-Selenium.png | 2020-01-24 19:44 | 93K | |
![]() | 035-Bromine.png | 2020-01-24 19:44 | 96K | |
![]() | 036-Krypton.png | 2020-01-24 19:44 | 97K | |
![]() | 037-Rubidium.png | 2020-01-24 19:44 | 96K | |
![]() | 038-Strontium.png | 2020-01-24 19:44 | 85K | |
![]() | 039-Yttrium.png | 2020-01-24 19:44 | 82K | |
![]() | 040-Zirconium.png | 2020-01-24 19:44 | 83K | |
![]() | 041-Niobium.png | 2020-01-24 19:44 | 86K | |
![]() | 042-Molybdenum.png | 2020-01-24 19:44 | 84K | |
![]() | 043-Technetium.png | 2020-01-24 19:44 | 86K | |
![]() | 044-Ruthenium.png | 2020-01-24 19:44 | 91K | |
![]() | 045-Rhodium-1.png | 2020-01-24 19:44 | 82K | |
![]() | 046-Palladium.png | 2020-01-24 19:44 | 79K | |
![]() | 047-Silver.png | 2020-01-24 19:44 | 85K | |
![]() | 048-Cadmium.png | 2020-01-24 19:44 | 86K | |
![]() | 049-Indium.png | 2020-01-24 19:44 | 92K | |
![]() | 050-Tin.png | 2020-01-24 19:44 | 91K | |
![]() | 051-Antimony.png | 2020-01-24 19:44 | 96K | |
![]() | 052-Tellurium.png | 2020-01-24 19:44 | 95K | |
![]() | 053-Iodine-1.png | 2020-01-24 19:44 | 92K | |
![]() | 054-Xenon.png | 2020-01-24 19:44 | 92K | |
![]() | 055-Caesium.png | 2020-01-24 19:44 | 101K | |
![]() | 056-Barium.png | 2020-01-24 19:44 | 89K | |
![]() | 057-Lanthanum.png | 2020-01-24 19:44 | 93K | |
![]() | 058-Cerium.png | 2020-01-24 19:44 | 91K | |
![]() | 059-Praseodymium.png | 2020-01-24 19:44 | 99K | |
![]() | 060-Neodymium.png | 2020-01-24 19:44 | 98K | |
![]() | 061-Promethium.png | 2020-01-24 19:44 | 95K | |
![]() | 062-Samarium.png | 2020-01-24 19:44 | 96K | |
![]() | 063-Europium.png | 2020-01-24 19:44 | 90K | |
![]() | 064-Gadolinium.png | 2020-01-24 19:44 | 96K | |
![]() | 065-Terbium.png | 2020-01-24 19:44 | 96K | |
![]() | 066-Dysprosium.png | 2020-01-24 19:44 | 93K | |
![]() | 067-Holmium.png | 2020-01-24 19:44 | 92K | |
![]() | 068-Erbium.png | 2020-01-24 19:44 | 91K | |
![]() | 069-Thulium.png | 2020-01-24 19:44 | 92K | |
![]() | 070-Ytterbium.png | 2020-01-24 19:44 | 93K | |
![]() | 071-Lutetium.png | 2020-01-24 19:44 | 85K | |
![]() | 072-Hafnium.png | 2020-01-24 19:44 | 80K | |
![]() | 073-Tantalum.png | 2020-01-24 19:44 | 80K | |
![]() | 074-Tungsten.png | 2020-01-24 19:44 | 84K | |
![]() | 075-Rhenium.png | 2020-01-24 19:44 | 88K | |
![]() | 076-Osmium.png | 2020-01-24 19:44 | 83K | |
![]() | 077-Iridium.png | 2020-01-24 19:44 | 82K | |
![]() | 078-Platinum.png | 2020-01-24 19:44 | 81K | |
![]() | 079-Gold.png | 2020-01-24 19:44 | 78K | |
![]() | 080-Mercury.png | 2020-01-24 19:44 | 85K | |
![]() | 081-Thallium.png | 2020-01-24 19:44 | 96K | |
![]() | 082-Lead.png | 2020-01-24 19:44 | 97K | |
![]() | 083-Bismuth.png | 2020-01-24 19:44 | 93K | |
![]() | 084-Polonium.png | 2020-01-24 19:44 | 97K | |
![]() | 085-Astatine.png | 2020-01-24 19:44 | 97K | |
![]() | 086-Radon.png | 2020-01-24 19:44 | 93K | |
![]() | 087-Francium.png | 2020-01-24 19:44 | 96K | |
![]() | 088-Radium.png | 2020-01-24 19:44 | 86K | |
![]() | 089-Actinium.png | 2020-01-24 19:44 | 100K | |
![]() | 090-Thorium.png | 2020-01-24 19:44 | 94K | |
![]() | 091-Protactinium.png | 2020-01-24 19:44 | 100K | |
![]() | 092-Uranium.png | 2020-01-24 19:44 | 97K | |
![]() | 093-Neptunium.png | 2020-01-24 19:44 | 98K | |
![]() | 094-Plutonium.png | 2020-01-24 19:44 | 97K | |
![]() | 095-Americium.png | 2020-01-24 19:44 | 98K | |
![]() | 096-Curium.png | 2020-01-24 19:44 | 97K | |
![]() | 09718-IYPTCHEMORIGINS.png | 2020-01-24 19:44 | 361K | |
![]() | 097-Berkelium.png | 2020-01-24 19:44 | 99K | |
![]() | 098-Californium.png | 2020-01-24 19:44 | 96K | |
![]() | 099-Einsteinium.png | 2020-01-24 19:44 | 96K | |
![]() | 100-Fermium.png | 2020-01-24 19:44 | 91K | |
![]() | 101-Mendelevium.png | 2020-01-24 19:44 | 98K | |
![]() | 102-Nobelium.png | 2020-01-24 19:44 | 105K | |
![]() | 103-Lawrencium.png | 2020-01-24 19:44 | 101K | |
![]() | 104-Rutherfordium.png | 2020-01-24 19:44 | 89K | |
![]() | 105-Dubnium.png | 2020-01-24 19:44 | 84K | |
![]() | 106-Seaborgium.png | 2020-01-24 19:44 | 90K | |
![]() | 107-Bohrium.png | 2020-01-24 19:44 | 91K | |
![]() | 108-Hassium.png | 2020-01-24 19:44 | 90K | |
![]() | 109-Meitnerium.png | 2020-01-24 19:44 | 85K | |
![]() | 110-Darmstadtium.png | 2020-01-24 19:44 | 83K | |
![]() | 111-Roentgenium.png | 2020-01-24 19:44 | 84K | |
![]() | 112-Copernicium.png | 2020-01-24 19:44 | 91K | |
![]() | 113-Nihonium.png | 2020-01-24 19:44 | 97K | |
![]() | 114-Flerovium.png | 2020-01-24 19:44 | 90K | |
![]() | 115-Moscovium.png | 2020-01-24 19:44 | 107K | |
![]() | 116-Livermorium.png | 2020-01-24 19:44 | 93K | |
![]() | 117-Tennessine.png | 2020-01-24 19:44 | 102K | |
![]() | 118-Oganesson.png | 2020-01-24 19:44 | 95K | |
![]() | A-timeline-of-the-discoveries-of-the-chemical-elements-Jan-2019.png | 2020-01-24 19:44 | 438K | |