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Period 3 Elements
24" x 18"
Photographic Print

Period elements From left in their periodic table order they are sodium Na magnesium Mg aluminium Al silicon Si phosphorus P whitered sulphur S chlorine Cl and argon Ar Successive elements across the period have a single electron added and this causes immense changes in the chemical and physical properties Metals NaMgAl become nonmetals PSClAr solids become gases and reactive elements NaMg become inert Ar Mg is used in flares Ar in light bulbs and Si in microchips P and S have different structural forms allotropes Cl and Ar form diatomic Cl and monatomic Ar molecules

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