Which element has the symbol Ar?

Prepare for the Pre-IB Grade 9 Science Exam with detailed flashcards and multiple-choice questions. Each question is paired with hints and thorough explanations. Ace your test with confidence!

Multiple Choice

Which element has the symbol Ar?

Explanation:
In chemistry, each element has a unique symbol that stands for its name. Ar is the symbol for Argon, a noble gas with atomic number 18 that is very unreactive. The other elements have different symbols—Calcium is Ca, Potassium is K, and Chlorine is Cl—so Ar uniquely identifies Argon.

In chemistry, each element has a unique symbol that stands for its name. Ar is the symbol for Argon, a noble gas with atomic number 18 that is very unreactive. The other elements have different symbols—Calcium is Ca, Potassium is K, and Chlorine is Cl—so Ar uniquely identifies Argon.

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