118 Elements and Their Symbols and Atomic Numbers ... which is based on atomic number rather than atomic mass. This ...

Argon is an inert gas in group VIII A of the periodic table with atomic number 18, an atomic weight of 39.948, and a density of 1.40 Mg/m 3. In the solid state it forms an fcc crystal with a melting ...

Here is a list of the first 30 elements of the periodic table with their symbols, and atomic masses. Combine their atomic masses to find out the molecular mass of a compound/element formed by the ...

Argon is an inert, colorless and odorless element — one of the Noble gases. Used in fluorescent lights and in welding, this element gets its name from the Greek word for "lazy," an homage to how ...