An atom contains 6 protons, 6 neutrons, and 6 electrons. What is the total charge of this atom?

• A. 0 (neutral)
• B. +6
• C. +12
• D. -6

Answer: (A)

Verified step by step guidance

1. Identify the charges of each subatomic particle: protons have a charge of +1, neutrons have no charge (0), and electrons have a charge of -1.
2. Calculate the total positive charge contributed by the protons: multiply the number of protons by their charge, which is \$6 \times (+1) = +6$.
3. Calculate the total negative charge contributed by the electrons: multiply the number of electrons by their charge, which is \$6 \times (-1) = -6$.
4. Add the total positive and negative charges together to find the net charge: \(+6 + (-6) = 0\).
5. Since the net charge is zero, conclude that the atom is electrically neutral.