Periodicity 0.0 / 5 ? ChemistryThe Periodic TableASOCR Created by: nnelsonCreated on: 03-04-14 22:48 Number of protons in the nucleus atomic number 1 of 10 horizontal row of elements in the periodic table period 2 of 10 regular periodic variation of properties of elements with atomic number and position in the periodic table periodicity 3 of 10 breaking up of a chemical substance with heat into at least two chemical substances thermal decomposition 4 of 10 a reaction in with a more-reactive element displaces a less-reactive element from an aqueos solution of the latter's ions displacement 5 of 10 oxidation and reduction of the same element in a redox reaction disproportionation 6 of 10 formation of a solid from a solution during a chemical reaction precipitation 7 of 10 group 7 elements halogens 8 of 10 group 2 oxides and hydroxides bases 9 of 10 vertical column in a periodic table group 10 of 10
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