How to do it Step One: The Octet (8) ruleAtoms will gain or
lose electrons to have a total of 8 electrons in their outer
shell.
Slide 3
Complete Outer Shell Once the atom gains or loses electrons it
is stable because it has a complete outer shell. Which group of
elements is stable (non-reactive)?
Slide 4
Noble Gases Atoms will gain or lose electrons to become like
the nearest noble gas.
Slide 5
Making Ions Remember an electron has a negative charge If and
an atom gains electrons it becomes negative by the amount of
electrons it gains Gain 1 electron and become -1
Slide 6
Making Ions Remember an electron has a negative charge If an
atom loses electrons it becomes positive by the amount of electrons
it loses Lose 1 electron and become +1
Slide 7
Exceptions to the Octet The elements that are close to the
noble gas Helium need to get 2 electrons in the outer shell, not 8.
Example: Lithium
Slide 8
Practice Game Round Make the ion for Lithium How many electrons
in the outer shell? Nearest Noble gas? Will it gain or lose
electrons and how many?
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Answer Li + or Li +1
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1 What is the ion for Oxygen?
Slide 11
O-2
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2 What is the ion for Sodium?
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Na +
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3 What is the ion for Flourine?
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F-
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4 What is the ion for Magnesium?
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Mg +2
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5 What is the ion for Nitrogen?
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N-3
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6 What is the ion for H?
Slide 21
H+
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7 What is the ion for Argon?
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Does not make an ion
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8 What is the ion for Sulfur?
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S-2
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9 What is the ion for Phosphorus?
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P-3
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10 What is the ion for Neon?
Slide 29
Does not make an ion
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11 Do groups 1 and 2 of the periodic table become positive or
negative ions?
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Positive
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12 Does group 8 of the periodic table become a positive or
negative ion?
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No ion, noble gases
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13 Do groups 6 and 7 lose or gain electrons when they become
ions?
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gain
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14 How does group number relate to electrons in the outer
shell?
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The same
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15 What is the octet rule? A) Each atom wants to get 8 protons
in the outer shell B) Each atom wants to be like the closest noble
gas C) Each atom wants to become unstable D) Each atom wants equal
numbers of protons and electrons
Slide 39
B
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16 Give the name of an element that can give the right number
of electrons to Chlorine. Hint: How many electrons does chlorine
want?
Slide 41
Any Group 1 element
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17 Give the name of an element that can give Oxygen the right
number of electrons. Hint: How many electrons does Oxygen
want?
Slide 43
Any group number 2
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18 Name an element that can take the right number of electrons
from Beryllium
Slide 45
Any group number 6 element
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19 Name an element that can take the right number of electrons
from Sodium
Slide 47
Any group number 7 element
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20 What type of bonding occurs when one atom takes electrons
from another?
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Ionic
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21 What type of bonding occurs when atoms share electrons?
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Covalent
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22 Name an atom that will form and ionic bond with Lithium
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Any group 7 element
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23 Why dont noble gases form ionic bonds?
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Complete outer shell
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24 Name an element that will form an ionic bond with
Oxygen
Slide 57
Any group 2 element
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25 Name an element that would require 2 atoms to form an ionic
bond with Sulfur
