Question

1. how would you figure the number of protons or electrons in an atom?
2. how would you figure the number of neutrons in an atom?

Explanation:

• For protons/electrons: In a neutral atom, the atomic number (from the periodic table) gives the number of protons and electrons.
• For neutrons: The mass number (approximate atomic mass) minus the atomic number gives the number of neutrons.

Answer:

• For protons/electrons: Use the atomic number from the periodic table.
• For neutrons: Subtract the atomic number from the mass number (approximate atomic mass).