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Ions

Ions. Ions. atoms of a given element that differ in the number of electrons,. …and consequently in overall charge. Ions. periodic patterns regarding ions. Ions. metal ions vs. nonmetal ions. Working with Atomic Notation. Ionic Charge or “Oxidation Number”. A Z X #.

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Ions

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  1. Ions

  2. Ions atoms of a given element that differ in the number of electrons, …and consequently in overall charge.

  3. Ions periodic patterns regarding ions

  4. Ions metal ions vs. nonmetal ions

  5. Working with Atomic Notation Ionic Charge or “Oxidation Number” AZX # Chemical Symbol

  6. Cl -1 Working with Atomic Notation 35 17

  7. Working with Ionic Notation Cl-1

  8. Working with Atomic Notation 2311 Na +1

  9. Working with Ionic Notation Na +1

  10. Ions • Anion • Negatively charged ion. • Cation • Positively charged ion.

  11. 6 C Carbon 12.011 neutral Carbon ionic Carbon

  12. 3 Li Lithium 6.941 neutral Lithium ionic Lithium

  13. 17 Cl Chlorine 34.453 Chlorine…the neutral atom Chlorine…the ion

  14. 11 Na Sodium 22.990 Sodium…the neutral atom Sodium…the ion

  15. Octet Rule • The octet rule says that atoms tend to gain, lose or share electrons so as to have eight electrons in their outer electron shell.

  16. Transition Metal Ions Yes, they are all positive but… 1) There are no predictable patterns that can be used to determine their ionic charges Transition Metal Ions are different than other metal ions. 2) A good number of transition metal elements possess an ability to have more than one positive ion.

  17. 1) There are no predictable patterns that can be used to determine their ionic charges

  18. 1) There are no predictable patterns that can be used to determine their ionic charges Co +2 Mn +7 Fe +2

  19. 1) There are no predictable patterns that can be used to determine their ionic charges Cu +2 Ag +1

  20. 2) A good number of transition metal elements possess an ability to have more than one positive ion. Fe +2 Fe +3

  21. 2) A good number of transition metal elements possess an ability to have more than one positive ion. Al +3

  22. 2) A good number of transition metal elements possess an ability to have more than one positive ion. Mn +4 Mn +5 Mn+2 Mn +3 Mn +7

  23. Working with Ions (practice)

  24. Working with more Ions (practice)

  25. Review problemDraw the following ions and (neutral) atoms using the Octet Rule/Model of the atom. (Valence Shell Only) a) Ne o b) Mg +2 c) Na +1 d) N -3

  26. Working with Ions (more practice)

  27. Naming Ions Predictable Metal Ions, Unpredictable Transition Metal Ions, and Nonmetal Ions are named differently

  28. Naming Ions

  29. Naming Ions keep the atoms elemental name …add the word ion keep the atoms elemental root …drop the ending …add the suffix –ide. (using the word ion is redundant and not acceptable when naming nonmetal ions) metal ions vs. nonmetal ions

  30. Naming Transition Metal Ions -Use the complete elemental name (as expected). -Use roman numerals to designate the ionic charge or oxidation number of the transition metal ion. -Use the word ion to designate its ionic nature. The Stock System

  31. Fe +2 ____________ Fe +3 ____________ Cu +1 ____________ Transition Metal Ions Cu +2 ____________ Mn +5 ____________ Mn +7 ____________

  32. He _____________ F -1 _____________ O -2 _____________ Naming Review Mg +2 ____________ Ni +2 ____________ Li +1 ____________

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