Which of the following correctly describes the structure and bonding in a sample of iodine (I₂) at room temperature?

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Question

Which of the following correctly describes the structure and bonding in a sample of iodine (I₂) at room temperature?

Accepted Answer

Simple molecular with I₂ molecules held together by weak intermolecular forces — Iodine at room temperature consists of I₂ molecules, each held together by a single covalent bond. The individual molecules are attracted to each other by weak intermolecular forces, giving iodine a low melting point and making it a solid that sublimes easily. Option A is incorrect as iodine forms covalent, not ionic, bonds. Option C incorrectly describes a giant covalent structure. Option D incorrectly describes the forces between molecules as covalent — intermolecular forces are not covalent bonds.

Answer

A giant ionic lattice with I⁻ ions held by electrostatic forces

Answer

A giant covalent lattice with iodine atoms bonded throughout the structure

Answer

Simple molecular with I₂ molecules held together by strong covalent intermolecular forces

Answer

Simple molecular with I₂ molecules held together by weak intermolecular forces

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