Question

Which one of the following metal is used thermometers? *
a. Copper
b. Mercury
c. Aluminium
d. Iron

Answer 1

Answer:

b. Mercury is the metal which is used in thermometers.

$\rule{200}2$

Additional Information:

• Mercury is the only one in liquid state at room temperature. 
• It's name is derived from the planet Mercury.
• Symbol of mercury is Hg. It's symbol is derived from a latin word "hydrargyrum" (silver water).
• Atomic Mass = Number of protons + Number of neutrons = 80 + 121 = 201 atomic mass units
• It is highly toxic, poisonous, heavy and non-radioactive in nature.
• Vapour pressure of mercury is relatively high.
• It can form alloys with gold, silver, zinc etc.
• It's period number is 6 and group number is 12 in periodic table.
• It has seven stable isotopes.

Answer 2

$\huge\underline\mathfrak\color{blue}Answer$

Mercury. .