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Octet rule: Quiz

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Question 1: In short, an element's valence shell is full and most stable when it contains eight electrons, corresponding to an s2p6 ________.
Electron configurationHydrogenOxygenNoble gas

Question 2: ________) contain one or more atoms which have an odd number of electrons.
Nitric oxideCarbon monoxideHydrogen sulfideNitrous oxide

Question 3: The ________, F, Cl, Br, I
MetalHalogenNonmetalNoble gas

Question 4: [2] In 1919 ________ refined these concepts further and renamed them the "cubical octet atom" and "octet theory".
Glenn T. SeaborgLinus PaulingRoger AdamsIrving Langmuir

Question 5: ________ only needs one additional electron to attain this stable configuration, while lithium needs to lose one.
NitrogenHydrogenHeliumOxygen

Question 6: In simple terms, molecules or ions tend to be most stable when the outermost ________ of their constituent atoms contain eight electrons.
Electron shellNoble gasPeriodic tableFrancium

Question 7: The duet rule of the first shell - the noble gas ________ has two electrons in its outer shell, which is very stable.
HeliumNitrogenHydrogenOxygen

Question 8: The rule is applicable to the main-group elements, especially ________, nitrogen, oxygen, and the halogens, but also to metals such as sodium or magnesium.
GoldUraniumCarbonAluminium

Question 9: This stability is the reason that the noble gases are so unreactive, for example ________ with electron configuration 1s2 2s2 2p6.
NitrogenOxygenNeonHelium







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