A comprehensive review lesson designed for high school special education students to master the concepts of atoms, isotopes, ions, and average atomic mass calculation using mass spectra. The lesson includes structured pacing from Do Now to Exit Ticket with heavy visual support and formula banks.
Silver (Ag) has two isotopes:
1. Ag-107 (50%)
2. Ag-109 (50%)
107
109
If an atom has 47 protons and 60 neutrons, what is its notation?
Notation Master
Write the subatomic particles for:
56Fe+3
P: _____
N: _____
E: _____
35Cl-1
P: _____
N: _____
E: _____
H
9
10
10
3. Which two atoms are Isotopes?
Explain:
4. Which atoms are Ions?
Explain:
Page 4
Atomic Formula Bank
Mass # = P + N
Atomic # = Protons
Charge = P - E
Exit Ticket
Check (5 Min)
1. Nuclear Charge of Atom G?
2. New Charge of Atom D?
(If it LOSES 1 electron...)
3. Name of Atom H?
4. Mass # of Atom F?
5. Charge of Atom E?
6. Which atom is neutral?
Page 5
Scratch Pad
Use this page for your own diagrams and notes!
Page 6
Homework Assignment
Review 2.1
Table Mastery Challenge
Notation
P
N
E
Charge
Nitrogen-15
7
Iodine-127
54
Calcium-42
18
Fluorine-19
10
Mass Spectrum Sketch
Silver (Ag) has two isotopes:
1. Ag-107 (50%) | 2. Ag-109 (50%)
107 amu
109 amu
Notation for 47 P, 60 N?
Notation Challenge
56Fe+3
P: _____
N: _____
E: _____
35Cl-1
P: _____
N: _____
E: _____
Page 7
-1
35
F
1
2
1
0
3
G
12
13
10
+2
25
H
9
10
10
-1
19
Isotopes: Atoms A and C (Both have 20 P).
Ions: A, B, E, G, H (Charge ≠ 0).
4. Exit Ticket (6 Problems)
1. Nuclear Charge G: +12
2. New Charge D: +1
3. Name H: Fluorine (F)
4. Mass # F: 3
5. Charge E: -1
6. Neutral: D, F, or C
5. Homework Assignment
Notation Master:
Fe-56: P=26, N=30, E=23
Cl-35: P=17, N=18, E=18
Table Rows:
Nitrogen-15: p=7, n=8, e=7, C=0
Iodine-127: p=53, n=74, e=54, C=-1
Calcium-42: p=20, n=22, e=18, C=+2
Fluorine-19: p=9, n=10, e=10, C=-1
Pacing Note
The expanded IP table (A-H) is designed to allow students to see patterns in charge vs. protons. Ensure students are using the formula bank for every row to build muscle memory before the quiz.
