Identify which of these elements are gases at 1000°C.HeliumMercurySodiumSiliconRheniumI'm not sure
Question
Solution 1
At 1000°C, the only element from the list that is a gas is Helium.
Here's the step by step process:
Helium: It is a noble gas and remains in the gaseous state at 1000°C.
Mercury: It is a liquid at room temperature and boils at 356.73°C. So, at 1000°C, it would be in a gaseous state.
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