BIOCHEMISTRY
ATOMIC STRUCTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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5
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6
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7
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8
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Detailed explanation-1: -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.
Detailed explanation-2: -This tendency is called the octet rule, because each bonded atom has 8 valence electrons including shared electrons.
Detailed explanation-3: -Noble gases are the members of group 18 of the modern periodic table which are He, Ne, Ar, Kr, Xe and Rn.
Detailed explanation-4: -Group 18 elements (helium, neon, and argon are shown) have a full outer, or valence, shell. A full valence shell is the most stable electron configuration. Elements in other groups have partially-filled valence shells and gain or lose electrons to achieve a stable electron configuration.
Detailed explanation-5: -No, the outermost shell in an atom cannot have more than 8 electrons.