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
 
karl (17)
 Biography: Carl Gustav Mosander
 Biography: Karl Klaus
 Biography: Karl Wilhelm Scheele
 Data1: Barium
 Data1: Chlorine
 Data1: Fluorine
 Data1: Molybdenum
 Data1: Oxygen
 Data1: Ruthenium
 Data1: Tungsten
 On This Day... 19 August
 On This Day... 20 April
 On This Day... 22 January
 On This Day... 26 February
 On This Day... 3 December
 On This Day... 9 December
 Production: Fluorine
 
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
 
kazakhstan (12)
 Country: China
 Country: Germany
 Country: Hungary
 Country: Japan
 Country: Kazakhstan
 Country: Slovakia
 Country: Ukraine
 Country: United Kingdom
 Country: United States of America
 Production: Chromium
 Production: Rhenium
 Production: Uranium
 
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
 
kelvin (13)
 Biography: Joseph Louis Gay-Lussac
 Data1: Helium
 Equation: Charles' Law
 Equation: Root mean square (RMS) velocity of gas molecules
 Equation: Temperature in kelvin from degrees celsius conversion
 Glossary: Centigrade (celsius)
 Glossary: Fahrenheit
 Glossary: Heat Capacity
 Glossary: Kelvin (absolute temperature)
 Glossary: Standard Temperature and Pressure (STP)
 Glossary: Temperature
 Isotope: Helium
 On This Day... 26 June
 
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
 
kept (14)
 Biography: Hennig Brand
 Biography: Jöns Jacob Berzelius
 Biography: Sir Humphry Davy
 Biography: William Hyde Wollaston
 Compounds: Lithium
 Compounds: Silver
 Data1: Einsteinium
 Data1: Fermium
 Data1: Iridium
 Data1: Phosphorus
 Data1: Plutonium
 Data1: Potassium
 Production: Einsteinium
 Production: Neon
 
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
 
kev (102)
 Data1: Francium
 Data2: Actinium
 Data2: Aluminium
 Data2: Americium
 Data2: Antimony
 Data2: Argon
 Data2: Arsenic
 Data2: Astatine
 Data2: Barium
 Data2: Beryllium
 Data2: Bismuth
 Data2: Boron
 Data2: Bromine
 Data2: Cadmium
 Data2: Caesium
 Data2: Calcium
 Data2: Carbon
 Data2: Cerium
 Data2: Chlorine
 Data2: Chromium
 Data2: Cobalt
 Data2: Copper
 Data2: Curium
 Data2: Dysprosium
 Data2: Erbium
 Data2: Europium
 Data2: Fluorine
 Data2: Francium
 Data2: Gadolinium
 Data2: Gallium
 Data2: Germanium
 Data2: Gold
 Data2: Hafnium
 Data2: Helium
 Data2: Holmium
 Data2: Hydrogen
 Data2: Indium
 Data2: Iodine
 Data2: Iridium
 Data2: Iron
 Data2: Krypton
 Data2: Lanthanum
 Data2: Lead
 Data2: Lithium
 Data2: Lutetium
 Data2: Magnesium
 Data2: Manganese
 Data2: Mercury
 Data2: Molybdenum
 Data2: Neodymium
 Data2: Neon
 Data2: Neptunium
 Data2: Nickel
 Data2: Niobium
 Data2: Nitrogen
 Data2: Osmium
 Data2: Oxygen
 Data2: Palladium
 Data2: Phosphorus
 Data2: Platinum
 Data2: Plutonium
 Data2: Polonium
 Data2: Potassium
 Data2: Praseodymium
 Data2: Promethium
 Data2: Protactinium
 Data2: Radium
 Data2: Radon
 Data2: Rhenium
 Data2: Rhodium
 Data2: Rubidium
 Data2: Ruthenium
 Data2: Samarium
 Data2: Scandium
 Data2: Selenium
 Data2: Silicon
 Data2: Silver
 Data2: Sodium
 Data2: Strontium
 Data2: Sulfur
 Data2: Tantalum
 Data2: Technetium
 Data2: Tellurium
 Data2: Terbium
 Data2: Thallium
 Data2: Thorium
 Data2: Thulium
 Data2: Tin
 Data2: Titanium
 Data2: Tungsten
 Data2: Uranium
 Data2: Vanadium
 Data2: Xenon
 Data2: Ytterbium
 Data2: Yttrium
 Data2: Zinc
 Data2: Zirconium
 Glossary: Double Beta Decay
 Glossary: Double Electron Capture
 Glossary: Electron Volt
 Isotope: Gadolinium
 Production: Rhodium
 
key (98)
 Compounds: Lithium
 Data1: Hydrogen
 Data1: Phosphorus
 Data2: Actinium
 Data2: Aluminium
 Data2: Americium
 Data2: Antimony
 Data2: Arsenic
 Data2: Astatine
 Data2: Barium
 Data2: Berkelium
 Data2: Beryllium
 Data2: Bismuth
 Data2: Boron
 Data2: Bromine
 Data2: Cadmium
 Data2: Caesium
 Data2: Calcium
 Data2: Californium
 Data2: Carbon
 Data2: Cerium
 Data2: Chlorine
 Data2: Chromium
 Data2: Cobalt
 Data2: Copper
 Data2: Curium
 Data2: Dysprosium
 Data2: Erbium
 Data2: Europium
 Data2: Fluorine
 Data2: Francium
 Data2: Gadolinium
 Data2: Gallium
 Data2: Germanium
 Data2: Gold
 Data2: Hafnium
 Data2: Holmium
 Data2: Hydrogen
 Data2: Indium
 Data2: Iodine
 Data2: Iron
 Data2: Lanthanum
 Data2: Lawrencium
 Data2: Lead
 Data2: Lithium
 Data2: Lutetium
 Data2: Magnesium
 Data2: Manganese
 Data2: Mercury
 Data2: Molybdenum
 Data2: Neodymium
 Data2: Neptunium
 Data2: Nickel
 Data2: Niobium
 Data2: Nitrogen
 Data2: Nobelium
 Data2: Osmium
 Data2: Oxygen
 Data2: Palladium
 Data2: Phosphorus
 Data2: Platinum
 Data2: Plutonium
 Data2: Polonium
 Data2: Potassium
 Data2: Praseodymium
 Data2: Promethium
 Data2: Protactinium
 Data2: Radium
 Data2: Rhenium
 Data2: Rhodium
 Data2: Rubidium
 Data2: Ruthenium
 Data2: Samarium
 Data2: Scandium
 Data2: Selenium
 Data2: Silicon
 Data2: Silver
 Data2: Sodium
 Data2: Sulfur
 Data2: Tantalum
 Data2: Technetium
 Data2: Tellurium
 Data2: Terbium
 Data2: Thallium
 Data2: Thorium
 Data2: Thulium
 Data2: Tin
 Data2: Titanium
 Data2: Tungsten
 Data2: Uranium
 Data2: Vanadium
 Data2: Xenon
 Data2: Ytterbium
 Data2: Yttrium
 Data2: Zinc
 Data2: Zirconium
 Document: The Halogens (Group 17)
 Glossary: Electrical Resistivity
 
keyes (1)
 On This Day... 11 June
 
kf (2)
 Compounds: Potassium
 Reactions: Potassium
 
kg (40)
 Country: Algeria
 Country: Burma (Myanmar)
 Country: Cameroon
 Country: Canada
 Country: Cuba
 Country: Democratic Republic of Congo
 Country: Gabon
 Country: Iran
 Country: Kenya
 Country: Romania
 Country: Senegal
 Country: Slovakia
 Data1: Boron
 Data1: Carbon
 Data1: Cobalt
 Data1: Einsteinium
 Data1: Helium
 Data1: Iridium
 Data1: Phosphorus
 Data1: Rhenium
 Data1: Ruthenium
 Data1: Scandium
 Data1: Thallium
 Glossary: Atomic mass unit (amu, u)
 Glossary: Enthalpy Change of Vapourisation
 Glossary: Magnetic Susceptibility (Mass)
 Glossary: Proton
 Isotope: Potassium
 Production: Aluminium
 Production: Beryllium
 Production: Einsteinium
 Production: Gold
 Production: Indium
 Production: Lithium
 Production: Plutonium
 Production: Rhodium
 Production: Ruthenium
 Production: Technetium
 Production: Thallium
 Production: Uranium
 
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
 
kilogram (12)
 Data1: Gold
 Data1: Iridium
 Data1: Palladium
 Data1: Plutonium
 Document: Chemical makeup of the human body
 Glossary: Endothermic
 Isotope: Plutonium
 Production: Aluminium
 Production: Bismuth
 Production: Holmium
 Production: Indium
 Production: Technetium
 
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
 
kinetic (11)
 Biography: Sir William Crookes
 Equation: Ideal gas law
 Glossary: Alpha Decay
 Glossary: Electron Volt
 Glossary: Temperature
 On This Day... 11 June
 On This Day... 13 June
 On This Day... 13 November
 On This Day... 18 July
 On This Day... 20 February
 On This Day... 5 July
 
kinetics (2)
 On This Day... 19 June
 On This Day... 22 February
 
king (5)
 Data1: Arsenic
 Data1: Gold
 Data1: Niobium
 Data1: Platinum
 Data1: Tantalum
 
kingdom (12)
 Compounds: Gold
 Country: China
 Country: Germany
 Country: Hungary
 Country: Japan
 Country: Kazakhstan
 Country: Slovakia
 Country: Ukraine
 Country: United Kingdom
 Country: United States of America
 Data1: Protactinium
 Production: Phosphorus
 
kings (1)
 Data1: Arsenic
 
kinsman (1)
 Biography: Julius Caesar Scaliger
 
kirchhoff (8)
 Biography: Gustav Robert Kirchhoff
 Biography: Robert Wilhelm Bunsen
 Biography: Sir William Crookes
 Data1: Caesium
 Data1: Rubidium
 Data1: Sodium
 On This Day... 10 May
 On This Day... 12 March
 
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
 
kj (112)
 Data2: Actinium
 Data2: Aluminium
 Data2: Americium
 Data2: Antimony
 Data2: Argon
 Data2: Arsenic
 Data2: Astatine
 Data2: Barium
 Data2: Berkelium
 Data2: Beryllium
 Data2: Bismuth
 Data2: Bohrium
 Data2: Boron
 Data2: Bromine
 Data2: Cadmium
 Data2: Caesium
 Data2: Calcium
 Data2: Californium
 Data2: Carbon
 Data2: Cerium
 Data2: Chlorine
 Data2: Chromium
 Data2: Cobalt
 Data2: Copper
 Data2: Curium
 Data2: Darmstadtium
 Data2: Dubnium
 Data2: Dysprosium
 Data2: Einsteinium
 Data2: Erbium
 Data2: Europium
 Data2: Fermium
 Data2: Fluorine
 Data2: Francium
 Data2: Gadolinium
 Data2: Gallium
 Data2: Germanium
 Data2: Gold
 Data2: Hafnium
 Data2: Hassium
 Data2: Helium
 Data2: Holmium
 Data2: Hydrogen
 Data2: Indium
 Data2: Iodine
 Data2: Iridium
 Data2: Iron
 Data2: Krypton
 Data2: Lanthanum
 Data2: Lawrencium
 Data2: Lead
 Data2: Lithium
 Data2: Lutetium
 Data2: Magnesium
 Data2: Manganese
 Data2: Meitnerium
 Data2: Mendelevium
 Data2: Mercury
 Data2: Molybdenum
 Data2: Neodymium
 Data2: Neon
 Data2: Neptunium
 Data2: Nickel
 Data2: Niobium
 Data2: Nitrogen
 Data2: Nobelium
 Data2: Osmium
 Data2: Oxygen
 Data2: Palladium
 Data2: Phosphorus
 Data2: Platinum
 Data2: Plutonium
 Data2: Polonium
 Data2: Potassium
 Data2: Praseodymium
 Data2: Promethium
 Data2: Protactinium
 Data2: Radium
 Data2: Radon
 Data2: Rhenium
 Data2: Rhodium
 Data2: Rubidium
 Data2: Ruthenium
 Data2: Rutherfordium
 Data2: Samarium
 Data2: Scandium
 Data2: Seaborgium
 Data2: Selenium
 Data2: Silicon
 Data2: Silver
 Data2: Sodium
 Data2: Strontium
 Data2: Sulfur
 Data2: Tantalum
 Data2: Technetium
 Data2: Tellurium
 Data2: Terbium
 Data2: Thallium
 Data2: Thorium
 Data2: Thulium
 Data2: Tin
 Data2: Titanium
 Data2: Tungsten
 Data2: Uranium
 Data2: Vanadium
 Data2: Xenon
 Data2: Ytterbium
 Data2: Yttrium
 Data2: Zinc
 Data2: Zirconium
 Glossary: Enthalpy Change of Vapourisation
 Glossary: Exothermic
 
klaproth (11)
 Biography: Carl Gustav Mosander
 Biography: Franz-Joseph Muller Freiherr von Reichenstein
 Biography: Louis Nicolas Vauquelin
 Biography: Martin Heinrich Klaproth
 Biography: William Gregor
 Data1: Cerium
 Data1: Tellurium
 Data1: Titanium
 Data1: Uranium
 Data1: Zirconium
 On This Day... 1 December
 
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
 
knife (12)
 Compounds: Iron
 Data1: Cadmium
 Data1: Dysprosium
 Data1: Lanthanum
 Data1: Lithium
 Data1: Potassium
 Data1: Terbium
 Data1: Thallium
 Data1: Thulium
 Document: The Alkali (Group 1) Metals
 Glossary: Gamma Ray
 Glossary: Moh's Scale of Hardness
 
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 (44)
 Atomic data: Antimony
 Atomic data: Cadmium
 Atomic data: Caesium
 Atomic data: Indium
 Atomic data: Iodine
 Atomic data: Krypton
 Atomic data: Molybdenum
 Atomic data: Niobium
 Atomic data: Palladium
 Atomic data: Rhodium
 Atomic data: Rubidium
 Atomic data: Ruthenium
 Atomic data: Silver
 Atomic data: Strontium
 Atomic data: Technetium
 Atomic data: Tellurium
 Atomic data: Tin
 Atomic data: Xenon
 Atomic data: Yttrium
 Atomic data: Zirconium
 Data1: Krypton
 Data2: Antimony
 Data2: Cadmium
 Data2: Indium
 Data2: Iodine
 Data2: Molybdenum
 Data2: Niobium
 Data2: Palladium
 Data2: Rhodium
 Data2: Rubidium
 Data2: Ruthenium
 Data2: Silver
 Data2: Strontium
 Data2: Technetium
 Data2: Tellurium
 Data2: Tin
 Data2: Xenon
 Data2: Yttrium
 Data2: Zirconium
 Isotope: Krypton
 Isotope: Rubidium
 Isotope: Selenium
 Reactions: Krypton
 Spectrum: Krypton
 
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
 
krypton (23)
 Atomic data: Krypton
 Biography: Morris Travers
 Biography: Sir William Ramsay
 Compounds: Krypton
 Compounds: Oxygen
 Data1: Iridium
 Data1: Krypton
 Data1: Neon
 Data1: Xenon
 Data2: Krypton
 Document: Abundance of the Elements in the Solar System
 Document: The Noble Gases (Group 18)
 Glossary: Electron Capture
 Glossary: Noble Gasses (inert gasses)
 Isotope: Krypton
 MAC data: Krypton
 Names: Krypton
 On This Day... 24 January
 Production: Argon
 Production: Krypton
 Production: Radon
 Reactions: Krypton
 Spectrum: 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