Question

The number of protons and neutrons for most stable element is:

• A. even-odd
• B. even-even
• C. odd-odd
• D. odd-even

Answer 1

Answer: (B)

even-even

The number of protons and neutrons for most stable element is: even-even

When a nucleus has an even number of protons and an even number of neutrons, the spinup protons are able to pair off with the spin-down protons and the spin-up neutrons pair off with the spin-down neutrons. These interactions make the nucleus more tightly bound, lowering its total energy and making it more stable