Ion Formation using the Octet Rule and Bohr Models - Free Printable

To fill in the table, we need to look at the Periodic Table of Elements for each card. Since I cannot see the specific cards you have, I will provide the answers for the first 5 most common elements used in these types of worksheets: Lithium (Li), Magnesium (Mg), Aluminum (Al), Oxygen (O), and Chlorine (Cl).

You can match these rows to your cards based on the element symbol or name.

Step-by-Step Logic for Each Element

1. Card 2: Magnesium (Mg)
* What element is this? Mg is Magnesium.
* What group is it in? It is in Group 2 (the second column).
* Valence electrons: Elements in Group 2 have 2 valence electrons.
* Gain or lose? Metals like to lose electrons to become stable. It will lose 2.
* Charge: Losing 2 negative electrons leaves a positive charge of +2.
* Cation or Anion? Positive ions are called Cations.
* Metal/Nonmetal/Metalloid? Magnesium is a Metal.

2. Card 3: Aluminum (Al)
* What element is this? Al is Aluminum.
* What group is it in? It is in Group 13 (sometimes called Group 3A).
* Valence electrons: It has 3 valence electrons.
* Gain or lose? It is easier to lose 3 than gain 5. It will lose 3.
* Charge: Losing 3 negatives creates a +3 charge.
* Cation or Anion? Positive ion = Cation.
* Metal/Nonmetal/Metalloid? Aluminum is a Metal.

3. Card 4: Oxygen (O)
* What element is this? O is Oxygen.
* What group is it in? It is in Group 16 (sometimes called Group 6A).
* Valence electrons: It has 6 valence electrons.
* Gain or lose? Nonmetals like to gain electrons to reach 8. It needs 2 more. It will gain 2.
* Charge: Gaining 2 negatives creates a -2 charge.
* Cation or Anion? Negative ion = Anion.
* Metal/Nonmetal/Metalloid? Oxygen is a Nonmetal.

4. Card 5: Chlorine (Cl)
* What element is this? Cl is Chlorine.
* What group is it in? It is in Group 17 (sometimes called Group 7A).
* Valence electrons: It has 7 valence electrons.
* Gain or lose? It needs just 1 more to be full. It will gain 1.
* Charge: Gaining 1 negative creates a -1 charge.
* Cation or Anion? Negative ion = Anion.
* Metal/Nonmetal/Metalloid? Chlorine is a Nonmetal.

*(Note: If your Card 5 is different, check if it is Fluorine (F), which is also Group 17, loses/gains 1, charge -1, Anion, Nonmetal).*

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Final Answer:

Here is the data to fill into your table rows. Check your cards to see which element matches which row number.

Row for Magnesium (Mg):
* Element: Mg
* Group: 2
* Valence Electrons: 2
* Gain/Lose: Lose 2
* Charge: +2
* Ion Type: Cation
* Classification: Metal

Row for Aluminum (Al):
* Element: Al
* Group: 13
* Valence Electrons: 3
* Gain/Lose: Lose 3
* Charge: +3
* Ion Type: Cation
* Classification: Metal

Row for Oxygen (O):
* Element: O
* Group: 16
* Valence Electrons: 6
* Gain/Lose: Gain 2
* Charge: -2
* Ion Type: Anion
* Classification: Nonmetal

Row for Chlorine (Cl):
* Element: Cl
* Group: 17
* Valence Electrons: 7
* Gain/Lose: Gain 1
* Charge: -1
* Ion Type: Anion
* Classification: Nonmetal