Hydrogen and helium. But there are more. See the related question below.
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Yes. Bromine and mercury are the only 2 elements that exist as liquids at room temperature (25oC). However, there 4 other elements that exist as liquids at temperatures slighty above room temperature: * Francium at 27oC * Cesium at 28.6oC * Gallium at 30.3oC * Rubidium at 39.5oC
Chloroform is a colorless liquid at room temperature and pressure.
Most elements are solids at room temperature. Some elements are gases (such as oxygen and nitrogen) and a few are liquids (such as mercury and bromine) at room temperature.
No, chemical elements can exist in different physical states such as solid, liquid, or gas depending on factors like temperature and pressure. For example, mercury is a liquid element at room temperature, while elements like oxygen and carbon can exist as gases.
Yes, ethanol is a liquid at room temperature (20-25 degrees Celsius).