Questions
Which of the following represents the electronic configuration of the most electropositive element?
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By Expert Faculty of Sri Chaitanya
a
[He]2s1
b
[Xe]6s1
c
[He]2s2
d
[Xe]6s2
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Correct option is B
Group I elements with ns1 configuration are more electropositive (EP) than group 2 (ns2) configuration. Moreover EP character increases down the group 1 (↓).So, Cs (6s1) is the most EP element.
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