One half of a mole of atoms would contain how many atoms?

• A. 6.022 × 10^{23}
• B. 1.000 × 10^{23}
• C. 3.011 × 10^{23}
• D. 1.204 × 10^{24}

Answer: (C)

Verified step by step guidance

1. Recall that one mole of any substance contains Avogadro's number of particles, which is approximately \$6.022 \times 10^{23}$ atoms.
2. Since the problem asks for the number of atoms in one half of a mole, you need to calculate half of Avogadro's number.
3. Set up the calculation as: \(\frac{1}{2} \times 6.022 \times 10^{23}\) atoms.
4. Multiply the numerical coefficients: \(\frac{1}{2} \times 6.022 = 3.011\).
5. Keep the power of ten the same, so the final expression for the number of atoms in half a mole is \$3.011 \times 10^{23}$ atoms.