Skip to main content

Ionic Compounds

Mahi Tuatahi / Do Now 🔗

  1. Complete another element quiz!
  2. You can move onto the next question set if you score 30/30 two days in a row!
  3. Record your score on your scoresheet

Ions 🔗

Ions are atoms that have gained or lost electrons in order to have a full valence shell.

Valence: outermost


Example 🔗

This is an oxygen atom. Copy the diagram into your book and give the electron shell configuration e.g. [2,3]


Making an ion is like rounding:


Think again about the oxygen atom and answer these questions:

  1. Will it prefer to gain or lose electrons?
  2. How many electrons will it need to gain/lose to have a full outer shell?


Copy this table into your own book and work in pairs to complete it.

Oxygen AtomOxygen Ion
Electron Shell Configuration
Number of Protons
Number of Electrons
Overall Charge

Oxygen AtomOxygen Ion
Electron Shell Configuration[2, 6][2, 8]2-
Number of Protons88
Number of Electrons810
Overall Charge02-

Writing Ions 🔗

$$ \begin{aligned} O^{2-} \end{aligned} $$


Making Ionic Compounds 🔗

$$ \begin{aligned} Na^{+} + Cl^{-} &\rightarrow NaCl \newline Cu^{2+} + 2OH^{-} &\rightarrow Cu(OH)_{2} \end{aligned} $$


Source


Electron Transfer 🔗

Ionic compounds form because:

By giving/receiving electrons they form an ion becoming positive or negatively charged. Once they have a charge they are elecrostatically attracted together and make a neutral compound.


Mahi Tuatahi 🔗

Quiz! If you have scored 30 twice in a row with the elements you can try and ions quiz today!


Tākaro / Game! 🔗

Your answer is simply to give the compound like this: $NaOH$ has 1x $Na^{+}$, 1x $OH^{-}$.


🔗

1. Sodium iodide 2. Silver iodide 3. Lithium fluoride 4. Ammonium chloride 5. Magnesium oxide 6. Lead sulfate 7. Barium carbonate
8. Zinc iodide 9. Aluminium chloride 10. Aluminium nitrate 11. Aluminium sulfate 12. Iron (II) oxide 13. Iron (III) oxide 14. Sodium bicarbonate 15. Lead bicarbonate

Whakatika 🔗

1-56-1011-15
$NaI$$PbSO_{4}$$Al_{2}(SO_{4})_{3}$
$AgI$$BaCO_{3}$$FeO$
$LiF$$ZnI_{2}$$Fe_{2}O_{3}$
$NHCl_{3}$$AlCl_{3}$$NaHCO_{3}$
$MgO$$Al(NO_{3})_{3}$$Pb(HCO_{3})_{2}$

Quizziz! 🔗

joinmyquiz.com