What kind of bonding occurs between carbon atoms, allowing carbon to form stable molecules?
a Single, double, and triple covalent bonds b Single, double, and triple hydrogen bonds c Single, double, and triple ionic bonds d Single, double, and triple metallic bonds
It's A. Carbon has four electrons in its outer electron shell. For reasons to do with quantum physics, it's stablest (happiest) when it has eight. It makes up to four covalent or 'electron sharing' bonds with up to four other atoms to 'get' the four it needs to fill that outer electron shell. If its bonding partner has enough valence electrons (i.e., Hydrogen only has one, so it can form only one bond), carbon can form double (two electron sharing) or triple (three electron sharing) bonds as well as single (one electron sharing) bonds.
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