The noble gases are unreactive because
(a) they react with sodium
(b) they have a full outer shell of electrons
(c) they have a half outer shell of neutrons
(d) they are too thin
Answers
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Answer:
B
Explanation:
They have copleted their octet
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(b) they have a full outer shell of electrons
Explanation:
An inert gas is a gas which does not undergo any chemical reactions under a set of given conditions. They are also called as noble gas. He, Ne and Ar belong to Group 18 which is the group containing noble gases. They have completely filled outer shells and thus 0 valency. So they do not undergo chemical reactions which makes them inert.
Option B is the answer.
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