Question

The symbols of lead and mercury are……….respectively.
A. Hg, Pb
B. Pb, Hg
C. Le, Me
D. Ld, My

Answer 1

Hint: As we know mercury is a chemical element commonly known as quicksilver. It is the only metal which is a liquid at standard temperature and pressure. Similarly, lead is a chemical element with the highest atomic number of any stable element.

Complete step by step answer:
As we know mercury is the 80th element on the periodic table with the symbol Hg located in period 6 and group 12.
Now let us see the physical and chemical properties of mercury:
>It is a heavy, silvery-white liquid metal, and compared to other metals it is a poor conductor of heat, but it can be used as a fair conductor of electricity.
>The freezing point of mercury is -$-{{38.83}^{\circ }}C$ and boiling point of ${{356.73}^{\circ }}C$.
>As we know mercury does not react with most acids, such as dilute sulphuric acid although oxidizing agents like concentrated sulfuric acid and nitric acid dissolve it to give sulfate and nitrate.
>It is majorly used in the manufacturing of industrial chemicals or in the production of electrical and electronic applications.

Lead is soft and malleable with the symbol Pb and atomic number is 82. It is present in the 6th period and in 14 groups.
>The weak metallic character of lead is illustrated by amphoteric nature. Lead and its oxides react with acids and bases and tend to form a covalent bond. Usually, compounds of lead are found in the +2 oxidation state.

Therefore, from the above, it is concluded that the correct option is (B).

Note:
Remember do not confuse here option (B) with option (A) because in option A we can see the same element but here mercury is coming first and later lead.