Which of the following statements is true about a neutral atom of silicon?

• A. It has 28 protons and 14 electrons.
• B. It has 14 protons and 14 electrons.
• C. It has 14 protons and 28 electrons.
• D. It has 14 neutrons and 14 electrons.

Answer: (B)

Verified step by step guidance

1. Recall that a neutral atom has an equal number of protons and electrons.
2. Identify the atomic number of silicon, which is 14; this number represents the number of protons in the nucleus of a silicon atom.
3. Since the atom is neutral, the number of electrons must also be 14 to balance the positive charge of the protons.
4. Note that the number of neutrons is not necessarily equal to the number of protons or electrons; it depends on the isotope, but this information is not given here.
5. Compare each statement with these facts: the correct statement must say silicon has 14 protons and 14 electrons.