| ABCDEFGHIJKLMNOPQRSTUVWXYZ |
| k+ (2) |
| Atomic data: Potassium |
| Reactions: Potassium |
| k+1 (1) |
| Data2: Potassium |
| k1 (1) |
| Equation: van't Hoff equation |
| k2 (4) |
| Data1: Uranium |
| Data1: Vanadium |
| Equation: van't Hoff equation |
| Production: Vanadium |
| k2li3al4si7o21 (1) |
| Country: Canada |
| k2o2 (1) |
| Data2: Carbon |
| k2s2o3 (1) |
| Reactions: Sulfur |
| k2s3 (1) |
| Reactions: Sulfur |
| k2so4 (1) |
| Compounds: Potassium |
| ka (4) |
| Equation: Acid dissociation constant |
| Equation: Base ionisation constant |
| Equation: Reaction quotient |
| Production: Aluminium |
| kadmeia (1) |
| Data1: Cadmium |
| kadmij (1) |
| Names: Cadmium |
| kadmium (1) |
| Names: Cadmium |
| kahlenberg (1) |
| On This Day... 27 January |
| kai (1) |
| On This Day... 20 April |
| kaim (1) |
| Data1: Manganese |
| kaiser (1) |
| Biography: Lise Meitner |
| kakodhs (1) |
| Biography: Robert Wilhelm Bunsen |
| kalcij (1) |
| Names: Calcium |
| kalcium (1) |
| Names: Calcium |
| kalckar (1) |
| Biography: Ida Eva Tacke Noddack |
| kalifornij (1) |
| Names: Californium |
| kalifornium (1) |
| Names: Californium |
| kalij (1) |
| Names: Potassium |
| kalium (2) |
| Data1: Potassium |
| Names: Potassium |
| kalmar (1) |
| Biography: Carl Gustav Mosander |
| kalsium (1) |
| Names: Calcium |
| kamen (2) |
| Isotope: Carbon |
| On This Day... 27 August |
| kamerlingh (1) |
| Data1: Helium |
| kansas (4) |
| Biography: Dale R. Corson |
| Biography: Joseph W. Kennedy |
| Country: United States of America |
| Production: Helium |
| kantian (1) |
| Biography: Hans Christian Oersted |
| kapitsa (2) |
| Data1: Helium |
| On This Day... 9 July |
| karbon (1) |
| Names: Carbon |
| karle (2) |
| On This Day... 14 February |
| On This Day... 2 December |
| karman (1) |
| Glossary: Air |
| karol (1) |
| Data1: Oxygen |
| karolinska (2) |
| Biography: Carl Gustav Mosander |
| Biography: Jöns Jacob Berzelius |
| karrer (1) |
| On This Day... 19 March |
| kasimir (1) |
| Data1: Protactinium |
| kasmir (1) |
| On This Day... 28 May |
| kassel (2) |
| Biography: Robert Wilhelm Bunsen |
| On This Day... 21 July |
| kay (1) |
| On This Day... 1 May |
| kazakihstan (1) |
| Data1: Chromium |
| kazan (1) |
| Biography: Karl Klaus |
| kb (1) |
| Equation: Base ionisation constant |
| kbq (1) |
| Production: Rhodium |
| kbr (1) |
| Reactions: Potassium |
| kc (1) |
| Equation: Henry's Law |
| kc6h7o6 (1) |
| Compounds: Potassium |
| kcl (4) |
| Compounds: Potassium |
| Data1: Potassium |
| Document: The Alkali (Group 1) Metals |
| Reactions: Potassium |
| kclo3 (1) |
| Compounds: Potassium |
| kcno (1) |
| Compounds: Potassium |
| keep (8) |
| Compounds: Magnesium |
| Compounds: Molybdenum |
| Compounds: Zirconium |
| Data1: Cerium |
| Data1: Gallium |
| Data1: Nitrogen |
| Data1: Zirconium |
| Isotope: Polonium |
| keeper (1) |
| Biography: Daniel Rutherford |
| keeping (9) |
| Allotrope: Selenium |
| Biography: Robert Wilhelm Bunsen |
| Data1: Iodine |
| Data1: Neon |
| Data1: Thallium |
| Equation: Boyle's Law |
| Production: Iodine |
| Production: Lithium |
| Production: Neon |
| keeps (1) |
| Production: Uranium |
| keesom (1) |
| Data1: Helium |
| kekul (2) |
| On This Day... 27 January |
| On This Day... 7 September |
| kelp (2) |
| Data1: Iodine |
| Production: Iodine |
| kelvins (3) |
| Compounds: Niobium |
| Data1: Beryllium |
| Glossary: Temperature |
| kenna (1) |
| Allotrope: Carbon |
| kennedy (4) |
| Biography: Joseph W. Kennedy |
| Data1: Plutonium |
| On This Day... 14 December |
| On This Day... 30 May |
| kenneth (3) |
| Data1: Berkelium |
| Data1: Californium |
| Data1: Seaborgium |
| kentucky (1) |
| Data1: Gold |
| kenya (2) |
| Country: Kenya |
| Data1: Sodium |
| kern (1) |
| Data1: Technetium |
| kernite (3) |
| Country: United States of America |
| Data1: Boron |
| Production: Boron |
| kerosene (3) |
| Data1: Barium |
| Data1: Potassium |
| Data1: Sodium |
| ketones (4) |
| Data1: Bromine |
| Document: |
| On This Day... 2 November |
| On This Day... 22 July |
| keyes (1) |
| On This Day... 11 June |
| kf (2) |
| Compounds: Potassium |
| Reactions: Potassium |
| kharasch (1) |
| On This Day... 24 August |
| khf2 (1) |
| On This Day... 4 June |
| khloros (1) |
| Data1: Chlorine |
| ki (2) |
| Compounds: Iodine |
| Data1: Iodine |
| kicked (1) |
| Biography: Pierre Curie |
| kidney (3) |
| Data1: Calcium |
| Data1: Indium |
| Data1: Mercury |
| kids (1) |
| On This Day... 11 November |
| kill (7) |
| Compounds: Oxygen |
| Compounds: Phosphorus |
| Compounds: Samarium |
| Data1: Copper |
| Document: The Halogens (Group 17) |
| Glossary: Gamma Ray |
| Glossary: Halogens |
| killed (4) |
| Biography: Julius Caesar Scaliger |
| Biography: Robert Wilhelm Bunsen |
| Biography: Smithson Tennant |
| Data1: Mercury |
| killer (1) |
| Compounds: Iron |
| killing (6) |
| Allotrope: Oxygen |
| Compounds: Oxygen |
| Compounds: Sodium |
| Data1: Fluorine |
| Glossary: Gamma Ray |
| Production: Fluorine |
| kiln (1) |
| Compounds: Calcium |
| kilns (1) |
| Glossary: Refractory |
| kilo (2) |
| Production: Rhodium |
| Production: Ruthenium |
| kilogramme (1) |
| Data1: Iridium |
| kilograms (2) |
| Data1: Bromine |
| Data1: Scandium |
| kilometer (1) |
| Production: Helium |
| kilometers (1) |
| Country: Russia |
| kilotons (1) |
| Data1: Plutonium |
| kilowatt (1) |
| Production: Aluminium |
| kimberlite (4) |
| Country: United States of America |
| Data1: Carbon |
| Production: Carbon |
| Production: Chromium |
| kind (5) |
| Biography: Jöns Jacob Berzelius |
| Biography: Michael Faraday |
| Data1: Boron |
| Glossary: Brinell Hardness |
| Glossary: Double Beta Decay |
| kinds (6) |
| Allotrope: Oxygen |
| Biography: (Gabriel) Daniel Fahrenheit |
| Compounds: Nitrogen |
| Glossary: Bulk Modulus |
| Glossary: Double Beta Decay |
| Glossary: Shear Modulus |
| kinetics (2) |
| On This Day... 19 June |
| On This Day... 22 February |
| king (5) |
| Data1: Arsenic |
| Data1: Gold |
| Data1: Niobium |
| Data1: Platinum |
| Data1: Tantalum |
| kings (1) |
| Data1: Arsenic |
| kinsman (1) |
| Biography: Julius Caesar Scaliger |
| kirchoff (3) |
| Biography: Gustav Robert Kirchhoff |
| Data1: Caesium |
| Data1: Rubidium |
| kirwan (1) |
| Biography: Antoine-Laurent de Lavoisier |
| kisel (1) |
| Names: Silicon |
| kisik (1) |
| Names: Oxygen |
| kitaibel (1) |
| Data1: Tellurium |
| kitchen (1) |
| Data1: Aluminium |
| kivu (1) |
| Country: Democratic Republic of Congo |
| klaus (3) |
| Biography: Karl Klaus |
| Data1: Ruthenium |
| On This Day... 22 January |
| klein (1) |
| On This Day... 15 September |
| kli2al (4) |
| Data1: Caesium |
| Data1: Lithium |
| Data1: Rubidium |
| Production: Lithium |
| klifeal (1) |
| Data1: Rubidium |
| klondike (1) |
| Data1: Gold |
| klor (1) |
| Names: Chlorine |
| km (9) |
| Compounds: Lead |
| Compounds: Oxygen |
| Country: Algeria |
| Country: Qatar |
| Country: United States of America |
| Glossary: Air |
| Glossary: Alpha Decay |
| Glossary: Speed of Sound |
| Production: Uranium |
| km3 (1) |
| Production: Molybdenum |
| kmgcl3 (3) |
| Data1: Magnesium |
| Data1: Potassium |
| Production: Magnesium |
| kmno4 (1) |
| Data1: Manganese |
| kn (1) |
| Glossary: Young's Modulus |
| knaben (1) |
| Country: Norway |
| knauth (1) |
| Production: Nitrogen |
| knee (1) |
| Data1: Tantalum |
| knew (2) |
| Biography: Jöns Jacob Berzelius |
| Biography: Robert Wilhelm Bunsen |
| knighted (2) |
| Biography: Sir Humphry Davy |
| Biography: Sir William Ramsay |
| knives (3) |
| Data1: Bismuth |
| Data1: Chromium |
| Data1: Titanium |
| kno3 (4) |
| Compounds: Potassium |
| Data1: Potassium |
| Data1: Sulfur |
| Data2: Zirconium |
| knocking (1) |
| Data1: Bromine |
| knowing (2) |
| Biography: Joseph Louis Gay-Lussac |
| Data1: Yttrium |
| knowledge (4) |
| Biography: Julius Caesar Scaliger |
| On This Day... 10 December |
| On This Day... 16 September |
| On This Day... 24 March |
| knowles (1) |
| On This Day... 1 June |
| knox (1) |
| Data1: Gold |
| knuckle (1) |
| Compounds: Silicon |
| ko2 (1) |
| Reactions: Potassium |
| kobalt (2) |
| Data1: Cobalt |
| Names: Cobalt |
| kobber (1) |
| Names: Copper |
| kobold (1) |
| Data1: Cobalt |
| kobolt (1) |
| Names: Cobalt |
| koh (5) |
| Data1: Gallium |
| Data1: Potassium |
| Document: The Alkali (Group 1) Metals |
| Reactions: Sulfur |
| Reactions: Zinc |
| kohl (1) |
| Data1: Antimony |
| kohlenstoff (1) |
| Names: Carbon |
| kol (1) |
| Names: Carbon |
| kola (3) |
| Country: China |
| Country: Russia |
| Country: Ukraine |
| kolbeckite (2) |
| Country: Madagascar |
| Country: Norway |
| kolthoff (1) |
| On This Day... 11 February |
| konel (1) |
| On This Day... 9 September |
| konrad (1) |
| Biography: Julius Caesar Scaliger |
| koolstof (1) |
| Names: Carbon |
| koper (1) |
| Names: Copper |
| koping (1) |
| Biography: Karl Wilhelm Scheele |
| kopp (1) |
| On This Day... 30 October |
| koppar (1) |
| Names: Copper |
| korea (5) |
| Country: Democratic People's Republic of Korea |
| Country: Republic of Korea |
| Data1: Carbon |
| Data1: Tungsten |
| Production: Cadmium |
| kornilieva (1) |
| Biography: Dmitriy Ivanovich Mendeleyev |
| kositar (1) |
| Names: Tin |
| kossel (1) |
| On This Day... 16 September |
| kowarski (1) |
| On This Day... 19 March |
| kpa (2) |
| Allotrope: Arsenic |
| Equation: Avogadro's law |
| kr+ (1) |
| Atomic data: Krypton |
| kr+2 (1) |
| Data2: Krypton |
| kr0 (1) |
| Data2: Krypton |
| krebs (1) |
| On This Day... 25 August |
| krem (1) |
| Names: Silicon |
| krennerite (1) |
| Production: Tellurium |
| kreuznach (2) |
| Data1: Radon |
| Production: Radon |
| krf (1) |
| Data1: Krypton |
| krf2 (1) |
| Reactions: Krypton |
| krh+ (1) |
| Compounds: Krypton |
| kripton (1) |
| Names: Krypton |
| kristian (2) |
| On This Day... 13 December |
| On This Day... 13 November |
| kroll (4) |
| Data1: Titanium |
| Data1: Zirconium |
| Production: Hafnium |
| Production: Zirconium |
| krom (1) |
| Names: Chromium |
| kroto (1) |
| On This Day... 23 August |
| krxe (1) |
| Compounds: Krypton |
| krxe+ (1) |
| Compounds: Krypton |
| kryptos (1) |
| Data1: Krypton |
| kryton (1) |
| Reactions: Krypton |
| ksenon (1) |
| Names: Xenon |
| kudriavy (2) |
| Country: Russia |
| Production: Rhenium |
| kuf5 (1) |
| Production: Uranium |
| kupfer (1) |
| Names: Copper |
| kupfernickel (1) |
| Data1: Nickel |
| kurchatov (1) |
| Data1: Rutherfordium |
| kurchatovium (1) |
| Data1: Rutherfordium |
| kurij (1) |
| Names: Curium |
| kurile (1) |
| Country: Russia |
| kurt (2) |
| On This Day... 10 July |
| On This Day... 23 January |
| kut (1) |
| Country: Outer space |
| kutahya (1) |
| Production: Boron |
| kuwait (1) |
| Country: Kuwait |
| kvave (1) |
| Names: Nitrogen |
| kvicksilver (1) |
| Names: Mercury |
| kvikks (1) |
| Names: Mercury |
| kw (1) |
| Glossary: pH |
| kwh (2) |
| Production: Aluminium |
| Production: Zinc |
| kwik (1) |
| Names: Mercury |
| kyrgyzstan (2) |
| Country: Kyrgyzstan |
| Production: Mercury |
| kysl (1) |
| Names: Oxygen |