Sticky Note
A heavier nucleus contains:
  1. More electrons than protons
  2. More protons than electrons
  3. An equal number of protons and electrons
  4. More neutrons than protons
Explanation

In heavier nuclei, the number of neutrons typically exceeds the number of protons to help stabilize the nucleus.


This is due to the need for additional strong nuclear force to counteract the electrostatic repulsion between positively charged protons.

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