Read the following and answer the question
Metallic Character:
The ability of an atom to donate electrons and form positive ion (cation) is known as electro-positivity or metallic character. Down the group, metallic character increases due to increase in atomic size and across the period, from left to right electro-positivity decreases due to decrease in atomic size
Non-Metallic Character:
The ability of an atom to accept electrons to form a negative ion (anion) is called non-metallic character or electronegativity. The elements having high electro-negativity have a higher tendency to gain electrons and form anion.
Down the group, electronegativity decreases due to increase in atomic size and across the period, from left to right electro-negativity increases due to decrease in atomic size.

Which of the following correctly represents the decreasing order of metallic character of Alkali metals plotted in the graph ?

Options

A. `Cs gt Rb gt Li gt Na gt K`
B. `K gt Rb gt Li gt Na gt Cs`
C. `Cs gt Rb gt K gt Na gt Li`
D. `Cs gt K gt Rb gt Na gt Li`

Answer

C

Explanation

As we move down the group atomic radius increases so the metallic character also increases. So, the correct sequence is : `CsgtRbgtKgtNagtLi`