Which of the following best describes the difference between an element and a molecule?

• A. An element consists of only one type of atom, while a molecule is made up of two or more atoms chemically bonded together.
• B. An element is a compound, while a molecule is a mixture.
• C. An element contains both protons and neutrons, while a molecule contains only electrons.
• D. An element is always a gas, while a molecule is always a solid.

Answer: (A)

Verified step by step guidance

1. Understand the definition of an element: An element is a pure substance that consists of only one type of atom, characterized by its atomic number (number of protons).
2. Understand the definition of a molecule: A molecule is formed when two or more atoms chemically bond together. These atoms can be of the same element or different elements.
3. Compare the two concepts: An element is a single type of atom, while a molecule is a group of atoms bonded together, which may be identical or different.
4. Evaluate the given options based on these definitions to identify which statement correctly distinguishes an element from a molecule.
5. Recognize that the correct description is: 'An element consists of only one type of atom, while a molecule is made up of two or more atoms chemically bonded together.'