Transcript Making Ions Millionaire!

How to do it…
 Step One: The Octet (8) rule…Atoms will gain or lose
electrons to have a total of 8 electrons in their outer
shell.
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)?
Noble Gases
 Atoms will gain or lose electrons to become like the
nearest noble gas.
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
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
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
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?
Answer
 Li + or Li +1
1
 What is the ion for Oxygen?
 O-2
2
 What is the ion for Sodium?
 Na +
3
 What is the ion for Flourine?
 F-
4
 What is the ion for Magnesium?
 Mg +2
5
 What is the ion for Nitrogen?
 N-3
6
 What is the ion for H?
 H+
7
 What is the ion for Argon?
 Does not make an ion
8
 What is the ion for Sulfur?
 S-2
9
 What is the ion for Phosphorus?
 P-3
10
 What is the ion for Neon?
 Does not make an ion
11
 Do groups 1 and 2 of the periodic table become
positive or negative ions?
 Positive
12
 Does group 8 of the periodic table become a positive or
negative ion?
 No ion, noble gases
13
 Do groups 6 and 7 lose or gain electrons when they
become ions?
 gain
14
 How does group number relate to electrons in the
outer shell?
 The same
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
B
16
 Give the name of an element that can give the right
number of electrons to Chlorine.
 Hint: How many electrons does chlorine want?
 Any Group 1 element
17
 Give the name of an element that can give Oxygen the
right number of electrons.
 Hint: How many electrons does Oxygen want?
 Any group number 2
18
 Name an element that can take the right number of
electrons from Beryllium
 Any group number 6 element
19
 Name an element that can take the right number of
electrons from Sodium
 Any group number 7 element
20
 What type of bonding occurs when one atom takes
electrons from another?
 Ionic
21
 What type of bonding occurs when atoms share
electrons?
 Covalent
22
 Name an atom that will form and ionic bond with
Lithium
 Any group 7 element
23
 Why don’t noble gases form ionic bonds?
 Complete outer shell
24
 Name an element that will form an ionic bond with
Oxygen
 Any group 2 element
25
 Name an element that would require 2 atoms to form
an ionic bond with Sulfur
 Any group 1 element