Elements of Life

AP Biology· difficulty 2/5

Which property makes carbon ideal as the central atom of organic molecules?

A
$Carbon forms 4 stable covalent bonds, allowing diverse 3D skeletons$
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B
$Carbon dissociates easily in water$
C
$Carbon donates protons to acids$
D
$Carbon can only form linear single bonds$

Explanation

With four valence electrons, carbon forms four covalent bonds and assembles into chains, rings, and branches - the basis for biomolecular diversity.

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