Periodic Table Cheatsheet
Here’s a sequenced list of all elements by atomic number, with concise names and definitions:
- 1. Hydrogen (H): Colorless, flammable gas, most abundant element, forms water.
- 2. Helium (He): Inert noble gas, used in balloons, cryogenics.
- 3. Lithium (Li): Soft, reactive alkali metal, used in batteries.
- 4. Beryllium (Be): Hard, lightweight metal, used in aerospace.
- 5. Boron (B): Metalloid, used in glass, semiconductors.
- 6. Carbon (C): Nonmetal, basis of organic chemistry, in diamonds.
- 7. Nitrogen (N): Colorless gas, 78% of atmosphere, in DNA.
- 8. Oxygen (O): Reactive gas, essential for breathing.
- 9. Fluorine (F): Reactive halogen gas, in toothpaste.
- 10. Neon (Ne): Noble gas, glows in signs, inert.
- 11. Sodium (Na): Soft alkali metal, in salt, for nerves.
- 12. Magnesium (Mg): Lightweight metal, in alloys, photosynthesis.
- 13. Aluminum (Al): Lightweight metal, in construction.
- 14. Silicon (Si): Metalloid, in semiconductors, Earth’s crust.
- 15. Phosphorus (P): Reactive nonmetal, in DNA, bones.
- 16. Sulfur (S): Yellow nonmetal, in fertilizers.
- 17. Chlorine (Cl): Greenish halogen gas, in disinfectants.
- 18. Argon (Ar): Noble gas, in welding, atmosphere.
- 19. Potassium (K): Soft alkali metal, in bananas.
- 20. Calcium (Ca): Metal, in bones, limestone.
- 21. Scandium (Sc): Rare metal, in aerospace, lighting.
- 22. Titanium (Ti): Strong metal, in aircraft, implants.
- 23. Vanadium (V): Metal, in steel alloys.
- 24. Chromium (Cr): Shiny metal, in stainless steel.
- 25. Manganese (Mn): Metal, in steel, metabolism.
- 26. Iron (Fe): Magnetic metal, in hemoglobin, construction.
- 27. Cobalt (Co): Metal, in magnets, vitamin B12.
- 28. Nickel (Ni): Metal, in coins, stainless steel.
- 29. Copper (Cu): Conductive metal, in wiring, plumbing.
- 30. Zinc (Zn): Metal, in galvanizing, diet.
- 31. Gallium (Ga): Soft metal, in semiconductors.
- 32. Germanium (Ge): Metalloid, in fiber optics.
- 33. Arsenic (As): Toxic metalloid, in pesticides.
- 34. Selenium (Se): Nonmetal, in electronics, diet.
- 35. Bromine (Br): Reddish halogen liquid, in flame retardants.
- 36. Krypton (Kr): Noble gas, in lighting, inert.
- 37. Rubidium (Rb): Reactive alkali metal, in electronics.
- 38. Strontium (Sr): Metal, in fireworks, red color.
- 39. Yttrium (Y): Metal, in superconductors, LEDs.
- 40. Zirconium (Zr): Metal, in nuclear reactors.
- 41. Niobium (Nb): Metal, in superconducting alloys.
- 42. Molybdenum (Mo): Metal, in steel alloys.
- 43. Technetium (Tc): Radioactive metal, in medical imaging.
- 44. Ruthenium (Ru): Rare metal, in electronics.
- 45. Rhodium (Rh): Precious metal, in catalytic converters.
- 46. Palladium (Pd): Metal, in catalytic converters.
- 47. Silver (Ag): Conductive metal, in jewelry, electronics.
- 48. Cadmium (Cd): Toxic metal, in batteries.
- 49. Indium (In): Soft metal, in touchscreens.
- 50. Tin (Sn): Malleable metal, in solder.
- 51. Antimony (Sb): Metalloid, in flame retardants.
- 52. Tellurium (Te): Metalloid, in solar cells.
- 53. Iodine (I): Halogen, for thyroid, disinfectants.
- 54. Xenon (Xe): Noble gas, in lighting, anesthesia.
- 55. Cesium (Cs): Reactive alkali metal, in atomic clocks.
- 56. Barium (Ba): Metal, in X-rays, fireworks.
- 57. Lanthanum (La): Lanthanide, in camera lenses.
- 58. Cerium (Ce): Lanthanide, in catalytic converters.
- 59. Praseodymium (Pr): Lanthanide, in magnets, lighting.
- 60. Neodymium (Nd): Lanthanide, in strong magnets.
- 61. Promethium (Pm): Radioactive lanthanide, in nuclear batteries.
- 62. Samarium (Sm): Lanthanide, in magnets, cancer treatment.
- 63. Europium (Eu): Lanthanide, in red phosphors.
- 64. Gadolinium (Gd): Lanthanide, in MRI agents.
- 65. Terbium (Tb): Lanthanide, in green phosphors.
- 66. Dysprosium (Dy): Lanthanide, in magnets.
- 67. Holmium (Ho): Lanthanide, in magnets, lasers.
- 68. Erbium (Er): Lanthanide, in fiber optics.
- 69. Thulium (Tm): Rare lanthanide, in X-ray machines.
- 70. Ytterbium (Yb): Lanthanide, in lasers, clocks.
- 71. Lutetium (Lu): Lanthanide, in PET scans.
- 72. Hafnium (Hf): Metal, in nuclear reactors.
- 73. Tantalum (Ta): Metal, in capacitors, implants.
- 74. Tungsten (W): High-melting metal, in light bulbs.
- 75. Rhenium (Re): Metal, in jet engines.
- 76. Osmium (Os): Dense metal, in pen tips.
- 77. Iridium (Ir): Metal, in spark plugs.
- 78. Platinum (Pt): Precious metal, in jewelry.
- 79. Gold (Au): Malleable metal, in jewelry.
- 80. Mercury (Hg): Liquid metal, in thermometers.
- 81. Thallium (Tl): Toxic metal, in electronics.
- 82. Lead (Pb): Heavy metal, in pipes.
- 83. Bismuth (Bi): Metal, in cosmetics, medicines.
- 84. Polonium (Po): Radioactive metal, in antistatic devices.
- 85. Astatine (At): Rare radioactive halogen.
- 86. Radon (Rn): Radioactive noble gas, health risk.
- 87. Francium (Fr): Rare radioactive alkali metal.
- 88. Radium (Ra): Radioactive metal, in old paint.
- 89. Actinium (Ac): Radioactive actinide, in research.
- 90. Thorium (Th): Radioactive actinide, in reactors.
- 91. Protactinium (Pa): Rare actinide, in research.
- 92. Uranium (U): Radioactive actinide, in nuclear power.
- 93. Neptunium (Np): Synthetic actinide, in research.
- 94. Plutonium (Pu): Radioactive actinide, in reactors.
- 95. Americium (Am): Synthetic actinide, in smoke detectors.
- 96. Curium (Cm): Synthetic actinide, in space research.
- 97. Berkelium (Bk): Synthetic actinide, in studies.
- 98. Californium (Cf): Synthetic actinide, in cancer research.
- 99. Einsteinium (Es): Synthetic actinide, in research.
- 100. Fermium (Fm): Synthetic actinide, from reactors.
- 101. Mendelevium (Md): Synthetic actinide, in experiments.
- 102. Nobelium (No): Synthetic actinide, limited use.
- 103. Lawrencium (Lr): Synthetic actinide, in physics.
- 104. Rutherfordium (Rf): Synthetic superheavy, in research.
- 105. Dubnium (Db): Synthetic superheavy, limited study.
- 106. Seaborgium (Sg): Synthetic superheavy, named for Seaborg.
- 107. Bohrium (Bh): Synthetic superheavy, in studies.
- 108. Hassium (Hs): Synthetic superheavy, unstable.
- 109. Meitnerium (Mt): Synthetic superheavy, for Meitner.
- 110. Darmstadtium (Ds): Synthetic superheavy, lab-made.
- 111. Roentgenium (Rg): Synthetic superheavy, for Roentgen.
- 112. Copernicium (Cn): Synthetic superheavy, radioactive.
- 113. Nihonium (Nh): Synthetic superheavy, from Japan.
- 114. Flerovium (Fl): Synthetic superheavy, for Flerov.
- 115. Moscovium (Mc): Synthetic superheavy, from Moscow.
- 116. Livermorium (Lv): Synthetic superheavy, for Livermore.
- 117. Tennessine (Ts): Synthetic superheavy halogen.
- 118. Oganesson (Og): Synthetic superheavy noble gas.