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Question

State why noble gases are unreactive while atoms of elements other than noble gases are chemically reactive.

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Answer

Noble gases are unreactive because they have stable electronic configuration i.e., their outer most shell is complete and are stable hence they do not react. On the other hand elements other than noble gases have unstable electronic configuration i.e., their outermost shell is incomplete and they lose or gain electrons in order attain a stable state.

💡 Some Related Questions

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Fill in the blanks with the correct word from the brackets:
(i) The bond between two elements in group 17[VIIA] of the periodic table is likely to be ____ [ionic/covalent].
(ii) In the reaction of Cl2 + 2KI ⟶ 2KCl + I2 the conversion of 2I to I2 is deemed as ____ [oxidation/reduction].
(iii) The covalent molecule containing three single covalent bonds is ____ [water/methane/ammonia].
(iv) The molecule of water combines with a ____ [hydrogen atom/proton/hydrogen molecule] to form a hydronium ion.
(v) For formation of an electrovalent bond between elements ‘X’ and ‘Y’ which are a metal and non-metal respectively, X should have a ____ [high/low] ionization potential and ‘Y’ a ____ [high/low] electron affinity.

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