Question

Which of the following is a metallic element?
(A) Sulphur
(B) Chlorine
(C) Chromium
(D) Oxygen

Answer 1

Hint: Most elements are often considered metals. They are grouped together within the middle to the left hand side of the table. The metals contain the alkali metals, alkaline earth metals, transition metals, lanthanides and actinides.

Complete answer:
Some materials are hard, lustrous, malleable, ductile, sonorous and good conductors of heat and electricity. The materials which generally pass these properties are called metals.
(A) Sulphur element belongs to the oxygen group (group of the periodic table) and is characterized as a non-metal tasteless, odouress, poor conductor of electricity.
(B) Chlorine is the second halogen, in the group $17$ of the periodic table and is nonmetallic.
(C) Chromium is a lustrous, brittle, hard metal. Its color is silver-grey and it can be highly polished. And Chromium is unstable in oxygen.
(D) Oxygen is a member of the group of chalcogens in the periodic table of elements, which is characterized as a highly reactive non-metal and an oxidizing agent that readily forms oxides with most of the elements as well as with other compounds.
According to the above statement, the correct answer is (C).

Additional Information: The metals share several common behaviors and properties. Some of them are: solid at room temperature (with an exception of mercury), usually shiny, high freezing point, good conductivity for both electricity and heat, low ionization energies, low electronegativities, malleable(ready to be pounded into sheets), ductile (are often pulled into wire), High density(exceptions- lithium, potassium and sodium), and so on.
Examples of metals are Lithium, Beryllium, Sodium, Chromium, Nickel, Gold, Copper, Silver, Iron and Zinc.

Note:
Metals generally have many uses including machinery, automobiles, aeronautics, trains, satellites, Industries, cooking utensils, water boilers etc. Also, a more reactive metal can replace a less reactive metal but a less reactive metal would never replace a metal which is more reactive.