The Period Table/Periodic Chemistry

Grade 10 · Chemistry

Semester 1 | Period 3 | Week 14

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Subject: Chemistry

Semester: 1

Period: 3

Week: 14

School Name:
Teacher’s Name:
Subject: Chemistry
Grade Level: Grade 10
Week & Period: Weeks 14, Period III
Date:
Topic: The Periodic Table / Periodic Chemistry
Topic: Structure of the Periodic Table

  • Understand groups and periods
  • Identify metals, nonmetals, and metalloids

 

Learning Objectives:

  • Identify main blocks, groups, and periods of the periodic table
  • Describe structure of the periodic table including groups and periods
  • Recognize metals, nonmetals, and metalloids on the table

Previous Knowledge:
Learners know the periodic table origin and basic element symbols.

Instructional Materials:

  • Large periodic table charts
  • Flashcards for groups and periods
  • Colored stickers or markers

Anticipation (Warm-Up) – 5 minutes
Ask:

  • "What is a group? What is a period?"
  • "Can you find metals and nonmetals on this table?"

Building Knowledge (Main Lesson) – 25 minutes

  1. Structure of the periodic table
    • Definition of group (vertical columns) and period (horizontal rows)
    • Identification of metals, nonmetals, and metalloids
  2. Characteristics of metals, nonmetals, metalloids (basic physical properties)

Learners’ Activities:

  • Label groups and periods on blank periodic tables
  • Use colored stickers to mark metals, nonmetals, and metalloids
  • Group work to classify a list of elements as metal/nonmetal/metalloid

Consolidation – 10 minutes
Questions:

  • What defines a group and a period?
  • Where are metals generally located on the table?
  • What is a metalloid? Give an example.

Homework / Assignment:

  • Draw a periodic table and color code metals, nonmetals, and metalloids
  • Write 3 physical properties each for metals and nonmetals

Notes – Detailed and Explained:

  • Groups run vertically and show elements with similar properties.
  • Periods run horizontally, showing elements with the same number of electron shells.
  • Metals are usually shiny, good conductors, and malleable.
  • Nonmetals vary but generally are poor conductors and brittle if solid.
  • Metalloids have properties between metals and nonmetals.

Expanded Notes / Instructions:

  • Use models or physical objects to demonstrate malleability and conductivity.
  • Provide extra visual aids for learners struggling with abstract concepts.

Inclusive / Differentiation:

  • Use group classification games to support collaborative learners.
  • Provide diagrams and simplified notes for learners who need step-by-step guidance.

Teacher’s Reflection:

  • Were learners able to correctly identify groups and periods?
  • Did the classification activity help learners understand element types?