Which metal is used in thermometers?

Which liquid metal is used for making thermometers?

The symbol of a metal element which is used in making thermometers is :

Identify the following. (a) The gaseous compound of two non-metals required for photosynthesis. (b) The compound of two non-metals which exists in all the three states under normal conditions. (c) The metal which breaks into pieces on the application of force. (d) The metal used in thermometers. (e) The inert gas used in advertisement sign boards.

a) Why is mercury used in thermometers? Give three reasons. b) List the special features of a mercury clinical thermometer.

The gas used in gas thermometer is

Which metal is used in amalgams ?