Question

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

a) Cs>Rb>Li>Na>K

b) K>Rb>Li>Na>Cs

c) Cs>Rb>K>Na>Li

d) Cs>K>Rb>Na>Li

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Answer 1

Explanation:

(a)order is: Li<Na<K<Rb<Cs.

(b)order is: Cs<Rb<K<Na<Li

(c)order is: Cs<Rb<K<Na<Li

(d)order is: Cs<Rb<K<Na<Li

If u didn't saw (b), (c) and (d) have the same answers. only there are some changes

HOP IT HEPLS❤

Answer 2

The correct option is c.

• Sodium(Na), Potassium(K), Lithium(Li), Caesium(Cs) and Rubidium(Rb) are called alkali metals.
• They reside in group 2 of the periodic table.
• In the alkali metal group as we move from top to bottom the size of the metal increases due to the addition of valance shells and their metallic character also increases.
• Thus the correct order of metallic character of Alkali metals plotted in the graph is Cs>Rb>K>Na>Li.