He: This symbol represents Helium, a noble gas used in balloons and as a cooling medium. Li: This stands for Lithium, a metal used in rechargeable batteries for electronics. Be: This stands for Beryllium, a strong, lightweight meta...
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"He" is the chemical symbol for Helium, an element on the periodic table with atomic number 2. Helium is a colorless, odorless, and inert noble gas, meaning it doesn't easily react with other elements. It is the second most abundant element in the universe, commonly found in stars, incl...
Name: helium Symbol: He Atomic number: 2 Relative atomic mass (Ar): 4.002602 (2) g, r [see notesgr] Standard state: gas at 298 K Appearance: colourless Classification: Non-metallic Group in periodic table: 18 Group name: Noble gas ...
Neon is used for neon signs, helium is used in balloons, argon is used in 3D printing, welding, lasers and has lots of other manufacturing uses. Radioactive Elements Many of the elements at the bottom of the table ( in green ) are radioactive. ...
Give the symbol for each element: (a) helium (b) silver (c) arsenic How does the number of atoms in a 27.5 gram iron ring compare to the number in a chrome ring of the same mass? N_{iron} / N_{chrome} = ___. How does...
* Helium (He) exists only as a gas except in extreme conditions.[3] It is the second lightest element and is the second most abundant in the universe.[4] Most helium was formed during the Big Bang, but new helium is created through nuclear fusion of hydrogen in stars.[5] On Earth,...
echo Periodic Table of Elements: Sorted by Symbol (EnvironmentalChemistry.com)- This site offers comprehensive information for each element including: who, when & where; up to 40 properties (chemical & physical); over 3,600 nuclides (isotopes); over 4,400 nuclide decay modes; the element names...
Periodic table of elements with information on chemical elements like gold, silver, iron, neon, helium, chlorine, copper, cobalt, and more
HELIUM He Ne NEON N P 31 75 14 8 OXYGEN O S 32 79 16 9 FLUORINE F 19 35 10 4 11 SODIUM Na Mg K 39 85 20 12 13 MAGNESIUM 19 POTASSIUM CALCIUM Ca Sr 88 137 40 21 SCANDIUM Sc Y 89 45 22 TITANIUM Ti 48 91 VANADIUM V 51 93 24 CHROMIUM MANGANESE Cr Mn Fe 52 43 55 IRON...