Per NCERT, why does HELIUM exist as single ATOMS rather than as molecules?
AHelium can only exist at high temperatures
BHelium has zero electrons
CHelium has a stable electronic configuration (full K-shell with 2 electrons) so it does not need to share or transfer electrons
DHelium atoms repel each other
Answer & Solution
Correct answer: C. Helium has a stable electronic configuration (full K-shell with 2 electrons) so it does not need to share or transfer electrons
Per NCERT §9.4, He's filled K-shell makes it stable as a single atom — no need to bond.
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