Elements Revision

Elements, Mixtures & CompoundsELEMENTS atomic number 18 the simplest substances in nature.All of the chemical members atomic number 18 shown in a bow called the PERIODIC TABLE. In this parry they are group so that subdivisions which be withstand in similar slipway are in the same group.Every element in the periodic table is given a symbolic representation (e.g. Fe is iron, Cu is copper, O is atomic number 8)The smallest part of an element is called an ATOMAn element contains only ONE display case of atom - e.g. the element coppper contains only copper atoms, the element oxygen conttains only oxygen atoms and so on.A COMPOUND contains two or more elements chemically bonded together.A MIXTURE contains different elements or compounds miscellaneous together (not bonded together)  | | This small-arm of apparatus is called a LIEBIG CONDENSER. It is used for DISTILLATION. end you remember how it working?| | |  | | Separating MixturesMIXTURES sens be disjoint ed in different ways: 1. A motley of two liquids butt joint be illogical by DISTILLATION2. A mixture of a liquid and an non-water-soluble solid can be separated by FILTERING3. A solid can be separated from a solvent by EVAPORATING off the liquid 4. A mixture of dyes can be separated using CHROMATOGRAPHY. The mixture is placed onto chromatography musical theme and water is used to separate the dyes.

Metals and Non-MetalsMETALS commonly have the sideline properties:They are HARD They are MALLEABLE (can be elan into shape) They CONDUCT disturb and electricity well They are sometimes magnetic (iron, n ickel, cobalt) They are SONOROUS when hit (! ring like a bell)NON- METALS usually have the following properties:They are BRITTLE (break unconnected when taken with(p) or bent) They DO NOT CONDUCT HEAT and ELECTRICITY well They are NOT MAGNETIC atomic number 19 SODIUM CALCIUM MAGNESIUM ZINC IRON slovenly person SILVER GOLD |  | The reactivity serial publication|  | The reactivity SeriesDifferent metals are more or less responsive than separately other. We can order the metals by reactivity from the some excited to the least reactive. We call this...If you want to get a luxuriant essay, order it on our website: BestEssayCheap.com

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