Helium/Related Articles
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- Alpha decay [r]: Radioactive decay that stabilizes a nucleus by emitting an alpha particle, the nucleus of a helium atom (He2+). [e]
- Alpha particle [r]: helium nucleus; particle of charge 2e and mass 4 u. [e]
- Aluminum [r]: Add brief definition or description
- Apollo Command-Service Module [r]: Three-man spacecraft built for NASA by North American Aviation, and one of the two spacecraft that were utilized for the Apollo program, along with the Lunar Module, to land astronauts on the Moon. [e]
- Argon [r]: A chemical element with atomic number 18. It is an inert gas in group 18 of the modern periodic table. [e]
- Arsenic [r]: A chemical element, having the chemical symbol As, and atomic number (the number of protons) 33. [e]
- Astatine [r]: A chemical element having the chemical symbol At and an atomic number (the number of protons) of 85. [e]
- Atmosphere [r]: The layers of gas surrounding stars and planets. [e]
- Atom (science) [r]: The defining unit of chemical elements. [e]
- Atomic electron configuration [r]: A specification of the occupation of an atom's electron orbitals by electrons. [e]
- Atomic mass [r]: The mass of an atom expressed in unified atomic mass units (u) and formerly known as atomic weight. [e]
- Atomic number [r]: The number of protons in the nucleus of a single atom of a chemical element. [e]
- Atomic radius [r]: A measure of the size of an atom, usually the distance from the nucleus to the boundary of the surrounding cloud of electrons. [e]
- Beryllium [r]: A chemical element, having the chemical symbol Be, and atomic number (the number of protons) 4. [e]
- Boron [r]: A rare chemical element (atomic number = 5) present in 0.0003% of the earth's crust, mostly as borax and kernite. [e]
- Bromine [r]: A chemical element, having the chemical symbol Br, and atomic number (the number of protons) 35. [e]
- Cadmium [r]: A chemical element with the symbol Cd and atomic number 48. [e]
- Calcium [r]: The chemical element with the symbol Ca and atomic number 20. [e]
- Carbon [r]: Fourth most abundant chemical element in the Universe, with atomic number Z=6. [e]
- Catalog of magnetic nuclei [r]: Add brief definition or description
- Chemical elements [r]: In one sense, refers to species or types of atoms, each species/type distinguished by the number of protons in the nuclei of the atoms belonging to the species/type, each species/type having a unique number of nuclear protons; in another sense, refers to substances, or pieces of matter, each composed of multiple atoms solely of a single species/type. [e]
- Chemistry [r]: Add brief definition or description
- Chlorine [r]: Add brief definition or description
- Chromium [r]: Add brief definition or description
- Cobalt [r]: Add brief definition or description
- Compressibility factor (gases) [r]: Add brief definition or description
- Continuous distillation [r]: Add brief definition or description
- Copper [r]: Add brief definition or description
- Cryogenics [r]: Add brief definition or description
- Deuterium [r]: Add brief definition or description
- Expansion turbine [r]: Add brief definition or description
- Fluorine [r]: Add brief definition or description
- Fusion device [r]: Add brief definition or description
- Galileo Probe [r]: Add brief definition or description
- Gallium [r]: Add brief definition or description
- Gas balloon [r]: Add brief definition or description
- Gas [r]: Add brief definition or description
- Germanium [r]: Add brief definition or description
- Gold [r]: Add brief definition or description
- Graf Zeppelin (LZ-127) [r]: Add brief definition or description
- Graham's law [r]: Add brief definition or description
- Henry's law [r]: Add brief definition or description
- Hindenburg (LZ-129) [r]: Add brief definition or description
- Hot air balloon [r]: Add brief definition or description
- Hydrogen [r]: Add brief definition or description
- Iridium [r]: Add brief definition or description
- Iron [r]: Add brief definition or description
- Johannes Diderik van der Waals [r]: Add brief definition or description
- Joule-Thomson effect [r]: Add brief definition or description
- Jupiter (planet) [r]: Add brief definition or description
- Krypton [r]: Add brief definition or description
- LZ-129 Hindenburg [r]: Add brief definition or description
- Lead [r]: Add brief definition or description
- Lithium [r]: Add brief definition or description
- Magnesium [r]: Add brief definition or description
- Magnetometer [r]: Add brief definition or description
- Manganese [r]: Add brief definition or description
- Molybdenum [r]: Add brief definition or description
- Moored balloon [r]: Add brief definition or description
- NMR spectroscopy [r]: Add brief definition or description
- Natural gas processing [r]: Add brief definition or description
- Neon [r]: Add brief definition or description
- Neptunium [r]: Add brief definition or description
- Nickel [r]: Add brief definition or description
- Niobium [r]: Add brief definition or description
- Nitrogen [r]: Add brief definition or description
- Non-rigid airship [r]: Add brief definition or description
- Nova (astronomy) [r]: Add brief definition or description
- Nuclear fuel cycle [r]: Add brief definition or description
- Nuclear fuel [r]: Add brief definition or description
- Oxidation state [r]: Add brief definition or description
- Oxygen [r]: Add brief definition or description
- PIE (nuclear fuel) [r]: Add brief definition or description
- Periodic Table of Elements [r]: Add brief definition or description
- Phosphorus [r]: Add brief definition or description
- Polonium [r]: Add brief definition or description
- Potassium [r]: Add brief definition or description
- Quantum mechanics [r]: Add brief definition or description
- Radiation [r]: Add brief definition or description
- Red dwarf (star) [r]: Add brief definition or description
- Rubidium [r]: Add brief definition or description
- Russell-Saunders coupling [r]: Add brief definition or description
- Scandium [r]: Add brief definition or description
- Selenium [r]: Add brief definition or description
- Silicon [r]: Add brief definition or description
- Silver [r]: Add brief definition or description
- Sodium [r]: Add brief definition or description
- Solar system [r]: Add brief definition or description
- Strontium [r]: Add brief definition or description
- Sulfur [r]: Add brief definition or description
- Sun [r]: Add brief definition or description
- Technetium [r]: Add brief definition or description
- Thermal airship [r]: Add brief definition or description
- Titanium [r]: Add brief definition or description
- USS Shenandoah (ZR-1) [r]: Add brief definition or description
- Unobtanium [r]: Add brief definition or description
- Uranium [r]: Add brief definition or description
- Uranus (planet) [r]: Add brief definition or description
- Vandium [r]: Add brief definition or description
- Vapor-compression refrigeration [r]: Add brief definition or description
- Variable star [r]: Add brief definition or description
- Welding [r]: Add brief definition or description
- Yttrium [r]: Add brief definition or description
- Zeppelin NT [r]: Add brief definition or description
- Zeppelin [r]: Add brief definition or description
- Zinc [r]: Add brief definition or description
- Zirconium [r]: Add brief definition or description