THE effect known as the Widmanstatten structure is shown most clearly in those meteoric nickel-iron alloys in which ... find its percentage composition by chemical methods led to very different ...

The pioneering nuclear chemist Glenn Seaborg discovered berkelium at Berkeley Lab in 1949. It was one of many achievements ...

This means that the chemical formula used for a metal is simply the symbol for the element. For example, the formula for iron is Fe, even though a piece of iron contains very many iron atoms.

Both molecules include a non-protein moiety, consisting of an iron-porphyrin complex ... the general nature of the tertiary structure of a protein molecule. Before such a programme is embarked ...