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Introduction to periodic table


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Introduction to periodic table

  1. 1. Introduction to thePeriodic TableT- 1-855-694-8886Email- info@iTutor.comBy
  2. 2. How to Read the PeriodicTable Atomic Number: the number of PROTONSand ELECTRONS in an element Atomic Weight: the weight of 1 mole ofthat element Symbol: abbreviation that represents theelement Element name
  3. 3. 12.0107CarbonC6Atomic NumberSymbolElement NameAtomic Weight
  4. 4. Introduction to thePeriodic Table• Each square represents one element• All information stand for 1 MOLE ofthat element– All elements are different
  5. 5. Periodic Table• Divided into two main sections: Metals andNonmetals• Vertical columns = GROUPS– There are 18 groups in the periodic table.– Elements have similar properties• Rows = PERIODS– Chemical and physical properties change A LOTacross periods
  6. 6. Types of Elements• Metals– An element that is a good conductor ofheat and electricity– Room temperature most are solid– Malleability: the ability to be hammeredinto thin sheets– Ductile: ability to be made into wire
  7. 7. Alkali MetalsGroup I of periodic tableVery reactiveUsually silver in appearanceReact violently with water Ex: Na (sodium) with water…you don’twant to be in the room
  8. 8. Alkali Earth MetalsMore dense, strong and hardHigh melting pointsToo reactive, are not found in natureGroup II elementsEx: Magnesium (Mg)
  9. 9. Transition MetalsThese are the “typical” metalsMiddle “chunk” of periodic tableGroups III – XIIEx: Iron (Fe)
  10. 10. Non-MetalsA poor conductor of heat andelectricityGases at room temperatureRemember: there are alwaysexceptions
  11. 11. Noble GasesConsidered non-metalsGroup 18 of the periodic table.Unreactive elements Give an example of a noble gas: Neon (Ne)
  12. 12. HalogensMost reactive nonmetalsReacts with metals to form saltsGroup 17Ex: Chlorine (Cl)
  13. 13. MetalloidsAn element that has characteristicsof metals and nonmetalsSolid at room temperatureLess malleable, but not as brittleSemi-conductive for electricity
  14. 14. The Endwww.iTutor.com1-855-694-8886VisitCall us formoreinformation: