SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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All ions need 8 electrons
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The maximum total number of electrons is 8
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The outer shell needs 8 electrons to be full (with the exception of the first shell which needs 2 to be full)
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Non-metals have a strong pull on their electrons
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Detailed explanation-1: -The octet rule dictates that atoms are most stable when their valence shells are filled with eight electrons.
Detailed explanation-2: -What is the 2 8 8 18 rule in chemistry? Each shell can contain only a fixed number of electrons: the first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on.
Detailed explanation-3: -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-4: -We should start with the atoms that have atomic numbers between 1 and 18. There is a 2-8-8 rule for these elements. The first shell is filled with 2 electrons, the second is filled with 8 electrons, and the third is filled with 8. You can see that sodium (Na) and magnesium (Mg) have a couple of extra electrons.
Detailed explanation-5: -Noun. octet rule. (chemistry) A rule stating that atoms lose, gain, or share electrons in order to have a full valence shell of 8 electrons. (Hydrogen is excluded because it can hold a maximum of 2 electrons in its valence shell.)