Question

The electronic configuration of an atom is 2,8,1. Which atom is chemically similarly
a) Ar(18)
b)Li(3)
c)F(9)
d)cl(17)

Answer 1

Answer:

Li(3) since it lies in group 1 A and has 1 electron in its outer most shell similar to Na.

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Answer 2

Answer:

b)Li(3)

Explanation:

2,8,1 is the electronic config of Na(11) both are placed in alkali metals group meaning that they form strong alkali on reaction with water to give strong bases and have valency to be 1

lithium also has electronic config of 2,1