UNDERSTANDING THE  CHEMISTRY  OF ATOMS TO IONS www.sciencetutors.zoomshare.com
ATOMS TO IONS <ul><li>Contents of Slide </li></ul><ul><li>Definitions of </li></ul><ul><li>Atom </li></ul><ul><li>Neutral ...
ATOMS   TO IONS www.sciencetutors.zoomshare.com
What is an ATOM? An ATOM is the smallest component of an element having the chemical properties of the element  www.scienc...
Definition of a Neutral Atom An atom with an equal number of protons and electrons is electrically neutral. No. of Proton(...
Definition of a Neutral Atom No. of Proton(+) = No. of Electron (-) (+ ve charge will neutralize – ve charge) if they are ...
Example of Neutral Atoms These atoms are electrically neutral because they have equal number of  protons and electrons. ww...
Electron Configuration Electron configuration shows how the electrons are distributed among various atomic orbital of atom...
What is an Ion? An ion is an atom or molecule which has lost or gained one or more valence electrons, giving it a positive...
Atoms to Ions Ions are formed by the loss or gain of electrons by single atoms or groups of atoms. www.sciencetutors.zooms...
Valence Electrons A Valence electron is an electron in the outer shell of an atom which can combine with other atoms to fo...
Electron Gain or Loss Ions are formed when electrons are gained on transferred (lost) www.sciencetutors.zoomshare.com   At...
QUICK QUIZ <ul><li>State whether the following is true (T), False (F) or Not Sure (?) </li></ul><ul><li>Ionic compounds ar...
IONIC COMPOUNDS Chemical compounds that consist of charged positive and negative ions (opposite charges +ve and –ve) OR  A...
TASK 2 Make a list of all ionic compounds you have studied.  www.sciencetutors.zoomshare.com
Explain why ionic compounds are generally solids with high melting points and conduct electricity.  www.sciencetutors.zoom...
Facts about Ionic Compounds <ul><li>Ionic compounds conduct electricity when they dissolve in water. </li></ul><ul><li>Ion...
UNDERSTANDING THE  CHEMISTRY  OF ATOMS TO IONS www.sciencetutors.zoomshare.com
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Understanding The Chemistry Of Atoms to Ions

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An ion is an atom or molecule which has lost or gained one or more valence electrons, giving it a positive or negative electrical charge
Ions are formed by the loss or gain of electrons by single atoms or groups of atoms.
This presentation was put together by Ivan Ukiwah.

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Understanding The Chemistry Of Atoms to Ions

  1. 1. UNDERSTANDING THE CHEMISTRY OF ATOMS TO IONS www.sciencetutors.zoomshare.com
  2. 2. ATOMS TO IONS <ul><li>Contents of Slide </li></ul><ul><li>Definitions of </li></ul><ul><li>Atom </li></ul><ul><li>Neutral Atom </li></ul><ul><li>Examples of neutral atoms </li></ul><ul><li>Electron configuration </li></ul><ul><li>Ions </li></ul><ul><li>Atoms to Ions </li></ul><ul><li>Valence electrons </li></ul><ul><li>Electron loss or gain </li></ul><ul><li>Quick Quiz </li></ul><ul><li>Ionic compounds </li></ul><ul><li>Task </li></ul><ul><li>Facts about Ionic Compounds </li></ul>www.sciencetutors.zoomshare.com
  3. 3. ATOMS TO IONS www.sciencetutors.zoomshare.com
  4. 4. What is an ATOM? An ATOM is the smallest component of an element having the chemical properties of the element www.sciencetutors.zoomshare.com
  5. 5. Definition of a Neutral Atom An atom with an equal number of protons and electrons is electrically neutral. No. of Proton(+) = No. of Electron (-) (+ ve charge will neutralize – ve charge) if they are equal. www.sciencetutors.zoomshare.com
  6. 6. Definition of a Neutral Atom No. of Proton(+) = No. of Electron (-) (+ ve charge will neutralize – ve charge) if they are equal . www.sciencetutors.zoomshare.com
  7. 7. Example of Neutral Atoms These atoms are electrically neutral because they have equal number of protons and electrons. www.sciencetutors.zoomshare.com ATOM Atomic No. No. Of Proton No. Of Electron Sodium 11 11 11 Potassium 19 19 19 Chlorine 17 17 17 Calcium 20 20 20
  8. 8. Electron Configuration Electron configuration shows how the electrons are distributed among various atomic orbital of atoms and ions. OR The arrangement of electrons in an atom. www.sciencetutors.zoomshare.com
  9. 9. What is an Ion? An ion is an atom or molecule which has lost or gained one or more valence electrons, giving it a positive or negative electrical charge www.sciencetutors.zoomshare.com
  10. 10. Atoms to Ions Ions are formed by the loss or gain of electrons by single atoms or groups of atoms. www.sciencetutors.zoomshare.com
  11. 11. Valence Electrons A Valence electron is an electron in the outer shell of an atom which can combine with other atoms to form molecules Copy and complete the table shown below www.sciencetutors.zoomshare.com Element Atomic Number Configuration Valence Sodium 11 Chlorine 17 Magnesium 12 Phosphorus 15
  12. 12. Electron Gain or Loss Ions are formed when electrons are gained on transferred (lost) www.sciencetutors.zoomshare.com Atom Atomic No. Electron Configuration Electron Gain/Loss Positive Ion Negative Ion Sodium 11 2, 8, 1 Loss = 1 Na+ Potassium 19 2, 8, 8, 1 Loss = 1 K+ Chlorine 17 2, 8, 7 Gain = 1 Cl - Fluorine 9 2, 7 Gain = 1 F-
  13. 13. QUICK QUIZ <ul><li>State whether the following is true (T), False (F) or Not Sure (?) </li></ul><ul><li>Ionic compounds are formed between metals and non metals. </li></ul><ul><li>The metals lose electrons and non metals gain them to get full shells. </li></ul><ul><li>They are generally solids with high melting points </li></ul><ul><li>Not all ionic compounds are conductors </li></ul><ul><li>ions in ionic compounds are held together in a lattice structure by ionic bonds </li></ul>www.sciencetutors.zoomshare.com
  14. 14. IONIC COMPOUNDS Chemical compounds that consist of charged positive and negative ions (opposite charges +ve and –ve) OR An ionic compound is a chemical compound in which positive and negative ions are held together in a lattice structure by ionic bonds. www.sciencetutors.zoomshare.com
  15. 15. TASK 2 Make a list of all ionic compounds you have studied. www.sciencetutors.zoomshare.com
  16. 16. Explain why ionic compounds are generally solids with high melting points and conduct electricity. www.sciencetutors.zoomshare.com
  17. 17. Facts about Ionic Compounds <ul><li>Ionic compounds conduct electricity when they dissolve in water. </li></ul><ul><li>Ionic compounds are very hard and very brittle. </li></ul><ul><li>Ionic compounds tend to have high melting and boiling points. </li></ul><ul><li>All ionic compounds form crystals. </li></ul>
  18. 18. UNDERSTANDING THE CHEMISTRY OF ATOMS TO IONS www.sciencetutors.zoomshare.com
  19. 19. Visit www.sciencetutors.zoomshare.com for more science resources

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