Copyright © Swun Math Grade 6 Unit 2 Lesson 6 Re-Engage
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Date: ______________________________
Re-Engage
Unit 2 Lesson 6: Rational Numbers Protons and
Electrons
Model
1. What is the overall charge of an atom
with 2 protons and no electrons?
Positive Negative Neutral
Rational Number =
2. What is the overall charge of an atom
with 2 protons and 2 electrons?
Positive Negative Neutral
Rational Number =
Structured Guided Practice
Directions: Read each description, complete the model, select the type of charge and write
the rational number.
Protons in the nucleus
carry a positive electric
charge.
This atom would have a
positive charge of 3.
Electrons carry a negative
electric charge.
This atom would have an
electric charge of –3.
This atom has the same
amount of protons and
electrons.
This atom would have a
neutral electric charge, or 0.
+3
-e
-e
-e
+3
-e
-e
-e
Copyright © Swun Math Grade 6 Unit 2 Lesson 6 Re-Engage
Re-Engage
Unit 2 Lesson 6: Rational Numbers Protons and
Electrons
Student Practice
Directions: Read each description, complete the model, select the type of charge and write
the rational number.
1. What is the overall electric charge of an
atom with 3 electrons and no protons?
Positive Negative Neutral
Rational Number =
2. What is the overall electric charge of an
atom with 4 protons and no electrons?
Positive Negative Neutral
Rational Number =
3. What is the overall charge of an atom
with 5 protons and 5 electrons?
Positive Negative Neutral
Rational Number =
4. What is the overall charge of an atom
with 6 electrons and no protons?
Positive Negative Neutral
Rational Number =