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used to describe a substance with basic properties.
molecule where the ratio of atoms is 1 : 5, for example PCl5
a chemical reaction in which a solid product forms from aqueous (aq) reactants.
a group of elements between the metals and the non-metals. They are semiconductors and have some...
a table of the elements in which elements with similar chemical and physical properties are...
the species that remains after an acid has donated a proton.