Which type of formula indicates the actual number of atoms of each element present in a compound?

• A. Condensed formula
• B. Empirical formula
• C. Structural formula
• D. Molecular formula

Answer: (D)

Verified step by step guidance

1. Understand the different types of chemical formulas: the empirical formula shows the simplest whole-number ratio of atoms in a compound, the molecular formula shows the actual number of atoms of each element in a molecule, the structural formula shows how atoms are bonded and arranged, and the condensed formula is a shorthand structural formula.
2. Identify that the question asks for the formula that indicates the actual number of atoms of each element present in a compound, not just the ratio or arrangement.
3. Recall that the empirical formula only gives the simplest ratio, which may not reflect the true number of atoms in the molecule.
4. Recognize that the molecular formula provides the exact count of each type of atom in a molecule, which directly answers the question.
5. Conclude that the molecular formula is the correct type of formula that indicates the actual number of atoms of each element present in a compound.