Read the following and answer the following questions
Metallic Character
The ability of an atom to donate electrons and form positive ions (cation) is known as
electropositivity or metallic character. Down the group, metallic character increases due to
increase in atomic size and across the period,from left to right electropositivity decreases due
to decrease in atomic size.
Group I Group II
Li Be
Na Mg
K Ca
(i) Which element is most electropositive in group I?
(ii) Out of Ca and K which one is more electropositive?
(iii) Arrange the elements of group II in increasing order of atomic size.
(iv) Out of Li and Be which one is more reactive?
(v) Give the electronic configuration of Na if its atomic number is 11.
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Answer:
Metallic Character <br> The ability of an atom to donate electrons and form positive ion (cation) is known as electropositivity or metallic character.
Explanation:
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