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 II. Types of ions

 II. Types of ions. ionic com pounds formed from elements that change. by losing or gaining electrons to become more stable com pound. 2 types of ions:. CAT IONS. AN IONS.  Cations. Formed from metallic elements. Ion with + charge, from loss of an electron. Naming:.

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 II. Types of ions

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  1.  II. Types of ions ioniccompounds formed from elements that change • bylosingor gainingelectrons to become morestablecompound. 2 types of ions: CATIONS ANIONS

  2.  Cations • Formed from metallic elements • Ion with +charge, from loss of anelectron Naming: • same but add the word “ion”. Li+ = Lithium ion Aluminum ion Al3+ =

  3. Anions • Formed fromnonmetallic elements • Ion with a - charge, from gaining electron Naming: • ending change to“-ide” & add “ion”. O2- = oxide ion P3- = phosphide ion

  4. Examples Symbol: Br Change in electrons:1 electron gained Br - Formula of ion: Bromide ion Name of ion: Symbol: Mg Change in electrons:2 electrons lost Mg 2+ Formula of ion: Magnesium ion Name of ion:

  5.  III. 2 Types of chemical formulas Molecular Formula H2O water No arrangement Structural Formula Shows arrangement

  6. What is the Structural Formula for water O H H To show the arrangement of the atoms 3 dimensions - • Diagrams/models -

  7. Diatomic Molecules Br2 I2 N2 Cl2 H2 O2 F2 What does thesubscript 2 represent? Two atoms! • Are these molecular or structural formulas? & NaCl ? Formula Unit

  8. What is a Formula Unit or Empirical Formula subscripts reduced! Lowest whole # ratio of ions NaCl Na42Cl42= Si2O4 = SiO2

  9. Potassium carbonate K2CO3 Aluminum Bromide p. 155 AlBr3 Magnesium Nitrate MgNO3 Zinc Nitrate, Lithium Flouride, Potassium Nitrate, Magnesium Flouride (Binary?) LiF, MgF XI2 +2 PCl3 Phosphorus Tri Chloride CO Carbon Monoxide XSO4 +2 Diphosphorus trioxide SiO2 +4 P2O3 SiBr4 KF Potassium Flouride Silicon Tetrabromide AgNO3 Silver Nitrate CuCO3 FeBr3 SnO Ba(NO3)2 Barium Nitrate (CO3)2- (Br -)3 O2-

  10. Nomenclature of Inorganic Compounds • Cpd. name aqueous solution • HF hydrogen fluoride hydrofluoric acid • HCl hydrogen chloride hydrochloric acid • HBr hydrogen bromide hydrobromic acid • H2S You do it!

  11. Naming of Inorganic Compounds • Cpd. name aqueous solution • HF hydrogen fluoride hydrofluoric acid • HCl hydrogen chloride hydrochloric acid • HBr hydrogen bromide hydrobromic acid • H2S hydrogen sulfide hydrosulfuric acid

  12. Nomenclature of Inorganic Compounds • two nonmetals other than H • minimum number of prefixes • CO carbon monoxide • CO2 carbon dioxide • SO3 sulfur trioxide • OF2You do it!

  13. Naming of Inorganic Compounds • two nonmetals other than H • minimum number of prefixes • CO carbon monoxide • CO2 carbon dioxide • SO3 sulfur trioxide • OF2 oxygen difluoride • P4O6 You do it!

  14. Nomenclature of Inorganic Compounds • two nonmetals other than H • minimum number of prefixes • CO carbon monoxide • CO2 carbon dioxide • SO3 sulfur trioxide • OF2 oxygen difluoride • P4O6 tetraphosphorus hexoxide • P4O10You do it!

  15. Nomenclature of InorganicCompounds • two nonmetals other than H • minimum number of prefixes • CO carbon monoxide • CO2 carbon dioxide • SO3 sulfur trioxide • OF2 oxygen difluoride • P4O6 tetraphosphorus hexoxide • P4O10 tetraphosphorus decoxide

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