Multiple choice

What is the symbol for potassium?

  1. PA

  2. P

  3. H2O

  4. K
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The chemical symbol for potassium is K, which comes from its Neo-Latin name "kalium." P is the symbol for phosphorus, PA is not a standard single-element symbol (though Pa is protactinium), and H2O is the chemical formula for water.

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