Periodic Table Trends And Properties

What you’ll practice

This quiz focuses on the big periodic trends - how properties change across a period and down a group - and how to use those patterns to make fast, accurate predictions.

Each question uses a 4-option multiple-choice format with no timer, so you can think through the trend instead of rushing.

Common pitfalls to avoid

A lot of missed questions come from mixing up direction (left vs right, up vs down) or forgetting key exceptions and definitions. Watch for wording like “largest,” “most metallic,” or “highest first ionization energy.”

• Confusing atomic radius trends with ionic radius trends
• Reversing electronegativity and metallic character directions
• Forgetting that ionization energy generally increases across a period and decreases down a group
• Treating reactivity trends the same for metals and nonmetals
• Overlooking that shielding increases down a group, affecting attraction to the nucleus

Difficulty and length settings

Difficulty is balanced by starting with straightforward trend recognition on Easy, then (at higher settings) adding more subtle comparisons and multi-step reasoning.

If your question count is set to 0, pick a question total before you start; you can also change the difficulty level to match how confident you feel with the trends.