Which of the following is the atomic number of lead (Pb)?

• A. 74
• B. 82
• C. 47
• D. 56

Answer: (B)

Verified step by step guidance

1. Understand that the atomic number of an element is the number of protons in the nucleus of an atom of that element.
2. Recall that each element on the periodic table has a unique atomic number that identifies it.
3. Look up the element lead (Pb) on the periodic table to find its atomic number.
4. Note that the atomic number of lead (Pb) is the number associated with it on the periodic table.
5. Compare the given options (74, 82, 47, 56) with the atomic number found for lead to identify the correct answer.