alloy - a mixture of a metal and one or more other elements, archaeologist - someone who studies history by examining sites and objects, atom - the smallest unit of an element, brittle - not able to be bent; will break if stressed, chemical bond - a force that holds atoms together, chemical formula - uses chemical symbols to show the number of atoms if each element in the compound, chemical symbol - a symbol of one or two letters used to represent an element, chemist - a scientist who studies elements and compounds, compound - a substance containing atoms of two or more different elements bonded together in a fixed ratio, electron - a negatively charged particle that moves around the nucleus of an atom, element - a pure substance made up of only one type of atom, lattice - a three-dimensional shape made up of a repeating pattern of atoms, malleable - able to be bent and shaped, mass - the amount of substance within matter, mixture - substances mixed together that can be physically separated, molecule - a group of atoms chemically bonded together, nucleus - the centre of an atom, which contains protons and neutrons, neutron - a particle found in the nucleus of an atom that has no charge, ochre - a mixture of iron oxide, clay and dirt, used as a natural paint, periodic table - a table of all known elements and their chemical symbols, property - characteristic or attribute of a substance, proton - a positively charged particle found in the nucleus of an atom, substance - matter that has a fixed chemical make-up,

Elements, Compounds and Mixtures

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