Which family contains elements with a full octet of valence electrons?A.The actinidesB.The noble gasesC.The alkali metalsD.The halogensSUBMITarrow_backPREVIOUS
Question
Which family contains elements with a full octet of valence electrons?
A. The actinides
B. The noble gases
C. The alkali metals
D. The halogens
Solution
The family that contains elements with a full octet of valence electrons is B. The noble gases.
Here's why:
A. The actinides - These are radioactive elements and do not have a full octet of valence electrons.
B. The noble gases - These elements (Helium, Neon, Argon, Krypton, Xenon, Radon) have a full octet of valence electrons, which makes them very stable and unreactive.
C. The alkali metals - These elements have one electron in their outermost shell, not a full octet.
D. The halogens - These elements have seven electrons in their outermost shell, so they are one electron short of a full octet.
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