Which element has the symbol Ar?

Study for the Pre-IB Grade 9 Science Exam. Utilize flashcards and multiple-choice questions, each question has hints and detailed explanations. Prepare effectively for your exam!

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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