[{"n": "Indium", "u": "/e/chemistry-and-materials/indium/", "s": "Soft, silvery metal used in displays and semiconductors."}, {"n": "Inorganic chemistry", "u": "/e/chemistry-and-materials/inorganic-chemistry/", "s": "Study of non-carbon-based compounds and their industrial applications."}, {"n": "Inorganic compound", "u": "/e/chemistry-and-materials/inorganic-compound/", "s": "A chemical compound that lacks carbon–hydrogen bonds, studied in inorganic chemistry."}, {"n": "Intermolecular force", "u": "/e/chemistry-and-materials/intermolecular-force/", "s": "Weak forces mediating interactions between molecules, essential in biochemistry."}, {"n": "Iodine", "u": "/e/chemistry-and-materials/iodine/", "s": "Heaviest stable halogen, essential for thyroid hormone synthesis."}, {"n": "Ionic bonding", "u": "/e/chemistry-and-materials/ionic-bonding/", "s": "Electrostatic attraction between oppositely charged ions."}, {"n": "Iridium", "u": "/e/chemistry-and-materials/iridium/", "s": "Iridium is a chemical element with the symbol Ir and atomic number 77."}, {"n": "Ketone", "u": "/e/chemistry-and-materials/ketone/", "s": "Organic compounds with a carbonyl group bonded to two carbons."}, {"n": "Lactic acid", "u": "/e/chemistry-and-materials/lactic-acid/", "s": "Organic acid central to metabolism, industry, and medicine."}, {"n": "Lanthanide", "u": "/e/chemistry-and-materials/lanthanide/", "s": "15 metallic elements from lanthanum to lutetium, filling 4f orbitals."}, {"n": "Lanthanum", "u": "/e/chemistry-and-materials/lanthanum/", "s": "Lanthanum, atomic number 57 and symbol La, is a silvery-white metal that is soft and ductile."}, {"n": "Lead", "u": "/e/chemistry-and-materials/lead/", "s": "Heavy metal with stable isotopes and historical industrial use."}, {"n": "Magnesium", "u": "/e/chemistry-and-materials/magnesium/", "s": "Lightweight metal essential to life and industry."}, {"n": "Magnesium sulfate", "u": "/e/chemistry-and-materials/magnesium-sulfate/", "s": "A versatile salt used in agriculture, medicine, and industry."}, {"n": "Manganese", "u": "/e/chemistry-and-materials/manganese/", "s": "Hard, brittle metal essential in alloys and human nutrition."}, {"n": "Mass spectrometry", "u": "/e/chemistry-and-materials/mass-spectrometry/", "s": "Technique measuring ion mass-to-charge ratios for chemical analysis."}, {"n": "Mercury (element)", "u": "/e/chemistry-and-materials/mercury-element/", "s": "A heavy, silvery liquid metal with unique physical properties and high toxicity."}, {"n": "Metallic bonding", "u": "/e/chemistry-and-materials/metallic-bonding/", "s": "Electrostatic attraction between delocalized electrons and metal ions."}, {"n": "Metalloid", "u": "/e/chemistry-and-materials/metalloid/", "s": "Elements with properties between metals and nonmetals."}, {"n": "Methane", "u": "/e/chemistry-and-materials/methane/", "s": "Simplest alkane, main component of natural gas, potent greenhouse gas."}, {"n": "Methanol", "u": "/e/chemistry-and-materials/methanol/", "s": "Simplest alcohol, key industrial chemical, and space marker."}, {"n": "Mica", "u": "/e/chemistry-and-materials/mica/", "s": "Micas are silicate minerals with perfect basal cleavage."}, {"n": "Molybdenum", "u": "/e/chemistry-and-materials/molybdenum/", "s": "Molybdenum is a transition metal essential for life and industry."}, {"n": "Neodymium", "u": "/e/chemistry-and-materials/neodymium/", "s": "A rare-earth metal used in powerful magnets and lasers."}, {"n": "Neptunium", "u": "/e/chemistry-and-materials/neptunium/", "s": "Neptunium is a radioactive actinide metal used as a precursor for plutonium-238 in spacecraft power."}, {"n": "Nickel", "u": "/e/chemistry-and-materials/nickel/", "s": "Silvery-white metal, ferromagnetic, key to stainless steel and batteries."}, {"n": "Niobium", "u": "/e/chemistry-and-materials/niobium/", "s": "A transition metal with superconducting and alloy-strengthening properties."}, {"n": "Nitrate", "u": "/e/chemistry-and-materials/nitrate/", "s": "Nitrate is a polyatomic ion used in fertilizers and explosives."}, {"n": "Nitric acid", "u": "/e/chemistry-and-materials/nitric-acid/", "s": "A highly corrosive mineral acid used in nitration and as a strong oxidizing agent."}, {"n": "Nitrogen", "u": "/e/chemistry-and-materials/nitrogen/", "s": "Nitrogen is a colourless, odourless diatomic gas forming 78% of Earth's air."}, {"n": "Nitrous oxide", "u": "/e/chemistry-and-materials/nitrous-oxide/", "s": "A gas with medical, recreational, and industrial uses."}, {"n": "Noble gas", "u": "/e/chemistry-and-materials/noble-gas/", "s": "Group 18 elements with full valence shells and low reactivity."}, {"n": "Nuclear chemistry", "u": "/e/chemistry-and-materials/nuclear-chemistry/", "s": "Sub-field of chemistry studying radioactivity and nuclear processes."}, {"n": "Nuclide", "u": "/e/chemistry-and-materials/nuclide/", "s": "A class of atoms defined by proton and neutron numbers."}, {"n": "Nylon", "u": "/e/chemistry-and-materials/nylon/", "s": "First commercially successful synthetic thermoplastic polymer."}, {"n": "Organic chemistry", "u": "/e/chemistry-and-materials/organic-chemistry/", "s": "Study of carbon compounds, basis of life and industry."}, {"n": "Organic compound", "u": "/e/chemistry-and-materials/organic-compound/", "s": "Carbon-based compounds central to life and chemistry."}, {"n": "Organometallic chemistry", "u": "/e/chemistry-and-materials/organometallic-chemistry/", "s": "Study of compounds with metal-carbon bonds, bridging inorganic and organic chemistry."}, {"n": "Organosilicon chemistry", "u": "/e/chemistry-and-materials/organosilicon-chemistry/", "s": "Study of carbon–silicon bond compounds, key to silicones and industry."}, {"n": "Organosulfur chemistry", "u": "/e/chemistry-and-materials/organosulfur-chemistry/", "s": "Study of organic compounds containing sulfur."}]