Periodic Trends in the Periodic Table
Free to teach as-is — the teacher guide, student handout, and slides are included.
Free — we'll email you an access link. Google Docs format.
Objective
I can explain how atomic radius, ionization energy, and electronegativity vary across periods and groups in the periodic table.
Part 1 of 3
Warm-up video
Unknown Channel · 5:00
We don't generate video — this one is by Unknown Channel 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 3
Practice
7 questions
Describe the trend of atomic radius as you move from left to right across a period in the periodic table. Explain why this trend occurs.
How does the ionization energy change as you move down a group in the periodic table? Provide a reason for this trend.
Part 3 of 3
Exit ticket
Quick comprehension check
“Describe how the atomic radius changes as you move from the top to the bottom of a group in the periodic table. Explain the reason for this trend. Explain how electronegativity varies as you move from left to right across a period in the periodic table. Provide a rationale for this trend.”
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
Slides
Ready to present
We'll ask for your email to send your access link — nothing else.
Teaching a group at a different level?
Where are your students right now? We'll rebuild this lesson to match — including the teacher guide, student handout, and slides, saved to your Google Drive.
Adapt This Lesson
