Valence Electrons and Lewis Dot Diagram of period 2 elements.
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Question 1
1.
State the number of valence electrons for Lithium (Li) and draw its Lewis dot Diagram.
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Question 2
2.
State the number of valence electrons for Beryllium (Be) and draw its Lewis dot Diagram.
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Question 3
3.
State the number of valence electrons for Boron (B) and draw its Lewis dot Diagram.
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Question 4
4.
State the number of valence electrons for Carbon (C) and draw its Lewis dot Diagram.
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Question 5
5.
State the number of valence electrons for Nitrogen (N) and draw its Lewis dot diagram.
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Question 6
6.
State the number of valence electrons for Oxygen (O) and draw its Lewis dot Diagram.
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Question 7
7.
State the number of valence electrons of Fluorine (F) and draw its Lewis dot Diagram.
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Question 8
8.
State the number of valence electrons of Neon (Ne) and draw its Lewis dot Diagram.
Octet Rule & Lewis dot diagram of ions
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Question 9
9.
The octet rule states :
Atoms tend to gain or lose electrons in order to have _______ valence electrons.
–How many valence electrons does CHLORINE have? _______
–How many more does it need to have 8? _______
–What will be the charge of chloride ion (Chlorine Anion) ? _______
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Question 10
10.
How many electrons does a Chloride (Cl-) ion contain in it's outer shell? Draw the Lewis dot diagram of Chloride (Cl-) ion. Make sure to use the bracket notation.
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Question 11
11.
How many valence electrons does an Aluminium atom contain? Draw its lewis dot diagram.
Ionic Compounds
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Question 12
12.
When an ionic compound is formed, Metals _______ electron and non metals _______ electrons.
Recap: Complete the questions 13 and 23.
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Question 13
13.
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Question 14
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Question 15
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Question 16
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Question 17
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Question 18
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Question 19
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Question 20
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Question 21
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Question 22
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Question 23
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Question 24
24.
Lithium Oxide (Li2O) has two Lithium ions and one Oxygen anion (Oxide)
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Question 25
25.
Lithium cation has one less electron than Lithium atom.
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Question 26
26.
Draw the Lewis dot structure for an element that will form an ion (Cation) with a charge of 3+?
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Question 27
27.
Draw the Lewis dot structure for an element that will form an ion (anion) with a charge of 3- ?
Challenge Yourself
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Question 28
28.
What is wrong with following Lewis dot diagrams ?
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Question 29
29.
What is the Formula unit of the Ionic compound: Sodium Oxide (Formed by the electron transfer between Sodium cation & Oxygen anion) ?
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Question 30
30.
What would be the most likely charge of an ion, if any, that is formed by an element that has 6 dots in its Lewis dot structure?
Transition metal cations. Use the image below to guide you complete this activity.
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Question 31
31.
Transition metals may lose different number of electrons and form different cations.
