Highly electropositive Alkali metals are separated from highly electronegative halogens by _________(a) noble gases(b) oxygen family(c) f-block elements(d) 7^th periodThis question was posed to me during an internship interview.My doubt is from Kossel-Lewis Approach to Chemical Bonding in portion Chemical Bonding and Molecular Structure of Chemistry – Class 11

Highly electropositive Alkali metals are separated from highly electro

1.	Highly electropositive Alkali metals are separated from highly electronegative halogens by _________(a) noble gases(b) oxygen family(c) f-block elements(d) 7^th periodThis question was posed to me during an internship interview.My doubt is from Kossel-Lewis Approach to Chemical Bonding in portion Chemical Bonding and Molecular Structure of Chemistry – Class 11
Answer» The CORRECT answer is (a) noble GASES To ELABORATE: According to Kossel, Highly electropositive Alkali metals are separated from highly electronegative HALOGENS by noble gases. This is because Alkali metals are the 1^st group and halogens the 17^th group. Elements in 18^th group i.e. nobles are preceded by group 17 elements and succeeded by group 1 elements.

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