Science(Chemistry)

• Element A substance made up of only one type of atom.
• Atom The smallest part of an element that can exist.
• Chemical Symbol A letter or letters used to represent a chemical element, found on the periodic table.
• Group Vertical columns on the periodic table containing elements with similar properties
• Period Horizontal rows on the periodic table.
• Physical Property A characteristic of a substance that can be observed at any time.
• Chemical property A characteristic of a substance observed during a reaction
• Ductile Can be hammered into a wire shape.
• Malleable Can be moulded into different shapes
• Sonorous Makes a ringing sound when hit.
• Compound A substance that contains two or more elements chemically bonded together.
• Hazard Symbol Used on chemicals and containers so that appropriate safety precautions can be taken.
• Molecule A small group of non-metal atoms (two or more) chemically joined together.
• Chemical Formula Shows the relative number of atoms of each element in a compound/molecule.
• Conductor of heat/electricity Allows heat/electricity to pass through the material