9.05.6 KEYWORDS
· Chemical Properties – How a substance reacts
· Physical Properties – Something you can measure about a substance without it reacting. Eg melting/boiling point, density, appearance etc
· Group – A column on the Periodic Table
· Period – A row on the Periodic Table
· Reactivity – How fast a substance reacts
· Metal – element on left of Periodic Table that forms positive ions and is shiny, strong, hard, malleable, ductile etc
· Non-metal – element on right of Periodic Table that forms negative ions and is dull, weak, brittle etc
· Malleable – can be rolled, bent or beaten into shape without shattering
· Ductile – can be stretched into a wire
· Brittle – opposite of malleable (shatters when bent)
· Mendeleev – scientist who made the first usable Periodic Table
· Triad – group of three elements with similar chemical properties
· Periodic – regularly repeating
· Octaves – Groups of seven elements with repeating patterns of behave
· Anomaly – Result that does not fit a pattern (clearly wrong)