alleryStart learning →In a dative covalent bond, where do the two shared electrons come from?
AOne from each atom
BBoth from the nucleus
COne from each proton
DBoth from one atom
Answer & Solution
Correct answer: D. Both from one atom
1. In an ordinary covalent bond each atom supplies one electron to the shared pair.
2. In a dative covalent bond both electrons shared in the bond come from the same atom.
3. This happens when an atom with a lone pair meets an atom or ion with no electrons.
4. The ammonium ion forms in exactly this way, since the hydrogen ion brings no electrons of its own.
_Source: Siyavula Physical Sciences Grade 11 (Everything Science, CC BY 4.0), Chapter 3: Atomic combinations_
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