GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Octet
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Duplet
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Valency
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None of the above
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Detailed explanation-1: -The tendency of atoms to have eight electrons in the outer shell is known as the “octet rule” or “Rule of eight”.
Detailed explanation-2: -The octet rule refers to the tendency of atoms to prefer to have eight electrons in the valence shell. When atoms have fewer than eight electrons, they tend to react and form more stable compounds.
Detailed explanation-3: -Referring to the octet rule, atoms attempt to get a noble gas electron configuration, which is eight valence electrons.
Detailed explanation-4: -Abegg’s rule was formulated by Richard Abegg in 1904. The rule states that the difference between the maximum negative and positive valence of an element is 8. This rule was later used for formulating the octet rule by Gilbert. N. Lewis in 1916 in his cubic atom theory.
Detailed explanation-5: -Most of the elements important in biology need eight electrons in their outermost shell in order to be stable, and this rule of thumb is known as the octet rule. Some atoms can be stable with an octet even though their valence shell is the 3n shell, which can hold up to 18 electrons.