Particle, A small piece of matter such as pollen or molecules, Atoms, Building blocks of all matter, Periodic table, All 118 elements arranged in groups and periods, Physical change, cutting, changing shape, colour, state change, reversible (usually), Mendeleev, Russian scientist credited for developing the periodic table, allowing gaps for undiscovered elements, molecule, 2 or more chemically bonded atoms same or different, compound, 2 or more different types of chemically bonded atoms, diatomic, 2 atoms bonded together, monoatomic, 1 atom existing without chemically bonding to others, chemical change, reaction of chemical bonding between different substances to produce a substance with different properties/ character/ behaviour, carbon dioxide, triatomic molecule with one carbon atom, two oxygen atoms, C.O.B.A.L.T., The visible signs that a chemical change has occurred; eg. colour, odour, bubbles, appearance/disappearance, light, temperature, atomic number, number given to each element that goes in ascending order along rows (called periods) in the periodic table, Rust, a chemical change of metal and oxygen, types of mixtures, solution, suspension, colloid, precipitate, a solid formed from 2 substances (at least) chemically reacting, mixture, more than one substance together but not chemically bonded; can usually be separated

Elements and Compounds

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