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A stylized Erlenmeyer flask emitting orange smoke is flanked by an atom model with a 20-sided die nucleus and a cluster of crystals.

Are you fast enough to master this Iodine quiz & climb the halogen leaderboard?

Halogens

Difficulty

Easy

Questions

20

Volts

1/q

Think you know the halogens? Prove it. Iodine isn't just a purple vapor or a cut-cleaner; it's the high-stakes heavyweight of the group. Track the sublimation, nail the electron shell count, and outpace the clock. Your rank is on the line. Can you dominate the deep purple?

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