In a single covalent bond between two atoms, how many electrons are shared?

• A. 4
• B. 6
• C. 1
• D. 2

Answer: (D)

Verified step by step guidance

1. Understand that a covalent bond involves the sharing of electrons between two atoms to achieve a more stable electron configuration.
2. Recall that a single covalent bond specifically involves the sharing of one pair of electrons between the two atoms.
3. Since one pair consists of two electrons, a single covalent bond shares exactly two electrons.
4. Double and triple covalent bonds involve sharing two and three pairs of electrons respectively, but this problem focuses on a single bond.
5. Therefore, the number of electrons shared in a single covalent bond is two.