Drawing Particle Diagrams

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Objective

I can draw particle diagrams to represent different states of matter and chemical reactions.

Part 1 of 4

Warm-up video

The Professors DuBois · 8:56

We don't generate video — this one is by The Professors DuBois on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 4

Key concepts

3 concepts

  1. 1

    In particle diagrams, spheres represent individual atoms, and the box represents the container they are in.

  2. 2

    If a particle diagram has spheres of the same size and color, it represents an element, but if two or more are touching, it is a diatomic element.

  3. 3

    A solid in a particle diagram has a structured pattern, while a liquid has a random pattern, and a gas fills the entire space.

Part 3 of 4

Practice

8 questions

1

In a particle diagram, what two features of the spheres representing atoms indicate that the substance is a single element?

2

Draw a particle diagram representing a diatomic element in the gaseous state.

Part 4 of 4

Exit ticket

Quick comprehension check

Draw a particle diagram that represents a homogeneous mixture of two gaseous elements, one diatomic and one monatomic.

Sample answer included in the free materials

Get the materials

Teacher guide, student handout, and slides — free, in Google Docs format

  • Teacher Guide

    Complete lesson plan with answer keys and alternate activities

  • Student Handout

    Printable worksheet

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