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Atomic Structure and Chemical Bonding — CHEMISTRY STD 9 — Question

ICSE BoardEnglish MediumSTD 9CHEMISTRYAtomic Structure and Chemical Bonding2 Marks
Question
Name an inert gas having
(a) a duplet structure
(b) an octet structure.
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Answer

(a) a duplet structure -Helium is the only noble gas which has only two electrons in its valence shell. Such an electronic configuration of a valence shell is called duplet structure
(b) an octet structure:- all noble gases, has a full valence shell. Noble gases have eight electrons in their outermost shell, except in the case of helium, which has two

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