Which element is diatomic at room temperature?

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Prepare for the Dual Enrollment Physical Science Midterm. Study with flashcards and multiple choice questions, each with hints and explanations. Ace your exam!

Multiple Choice

Which element is diatomic at room temperature?

Explanation:
At room temperature, some elements exist as diatomic molecules—two atoms bonded together. The element that does this here is hydrogen, which is found as H2, a two-atom molecule held together by a covalent bond. Neon is a monatomic gas, existing as single atoms (Ne). Sodium and magnesium are metals that form solid metallic lattices, not diatomic molecules. So hydrogen, in its diatomic form H2, is the correct choice.

At room temperature, some elements exist as diatomic molecules—two atoms bonded together. The element that does this here is hydrogen, which is found as H2, a two-atom molecule held together by a covalent bond. Neon is a monatomic gas, existing as single atoms (Ne). Sodium and magnesium are metals that form solid metallic lattices, not diatomic molecules. So hydrogen, in its diatomic form H2, is the correct choice.

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