What state of matter is sodium?

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Discover the NOVA Hunting the Elements Test. Engage with interactive flashcards and multiple choice questions. Prepare effectively for your assessment!

Multiple Choice

What state of matter is sodium?

Explanation:
State of matter depends on temperature relative to an element’s melting and boiling points. Sodium has a melting point of about 97.8°C, so at room temperature (around 20–25°C) it sits below that threshold and stays as a solid. In a solid, atoms are tightly packed in a crystal lattice, giving a definite shape and volume. If you heat sodium above its melting point, it becomes a liquid; above its boiling point (~883°C) it becomes a gas, and at even higher energy levels it can form a plasma. So the correct state at room temperature is solid.

State of matter depends on temperature relative to an element’s melting and boiling points. Sodium has a melting point of about 97.8°C, so at room temperature (around 20–25°C) it sits below that threshold and stays as a solid. In a solid, atoms are tightly packed in a crystal lattice, giving a definite shape and volume. If you heat sodium above its melting point, it becomes a liquid; above its boiling point (~883°C) it becomes a gas, and at even higher energy levels it can form a plasma. So the correct state at room temperature is solid.

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