25 degrees
Francium is considered a solid at room temperature.
Room temperature is considered 20 0C for all materials and tests.
72
A temperature of 24 degrees Celsius is considered to be a comfortable room temperature for most people. A couple degrees above or below is considered acceptable as well.
In scientific applications, room temperature is normally considered to be 20° C (68° F).
The aluminum will be the same as room temperature.
At "room temperature" - usually considered to be 68 degrees Fahrenheit - mercury is a liquid.
Mercury is the only metal which is liquid at room temperature. Hydrogen is sometimes considered to be a metal and is a gas at room temperature.
Water at room temperature will have 25 degrees Celsius. For all intensive purposes standard room temperature is considered at 25 degrees. This temperature is of very importance when studying thermochemistry.
While there is no single definitive answer, a reasonable room temperature would be 70 degrees F or 21 degrees C.
Of all the elements considered to be metalloids none of them are liquid at room temperature
21 degrees Celsius or 69.8 Fahrenheit is the benchmark for "room temperature".