MINI GAME / SCIENCE
Ion Formula Challenge
ION FORMULA 3-CHOICE CHALLENGE
Read an ion’s name and choose its formula from three options.
Check both the sign and size of the charge as you play.
ABOUT THIS GAME
About the game
Review common ions taught in junior-high science with a three-choice quiz.
Questions include positive ions such as hydrogen and sodium, and negative ions such as chloride and sulfate.
Check the charge as well as the chemical symbols.
POINT
Game highlights
01
Choose the ion formula
Read the ion name and select the correct formula from three options.
02
Pay attention to the charge
Compare similar-looking formulae and identify the correct charge, including Cu²⁺ for copper(II).
03
Practise cations and anions
The quiz includes both monatomic ions and polyatomic ions such as NH₄⁺, NO₃⁻ and SO₄²⁻.
SKILLS
What you practise
✓
Recall ion formulae from names
✓
Recognise ionic charges
✓
Distinguish cations and anions
✓
Identify common ions quickly
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PRINTABLES
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