Compare the characteristics of neutron, proton and electron.

Neutrons, protons, and electrons are the three fundamental subatomic particles that make up atoms. Each has distinct characteristics, including their mass, charge, and role in the atom. Below is a detailed comparison of these particles:
1. Neutron
• Symbol: nn
• Mass: Approximately 1.675×10−27 kg1.675 \times 10^{-27} \, \text{kg} (or roughly 1 amu)
• Charge: Neutral (no charge, 00)
• Location in the Atom: Found in the nucleus along with protons
• Role: Neutrons contribute to the mass of the atom and play a key role in stabilizing the nucleus by balancing the repulsive forces between positively charged protons. Their presence helps prevent the nucleus from breaking apart.
• Stability: A neutron is stable when bound within the nucleus of an atom. However, when free (not bound in a nucleus), a neutron is unstable and undergoes beta decay with a half-life of about 10 minutes.
• Spin: 12\frac{1}{2}, making it a fermion.
2. Proton
• Symbol: pp
• Mass: Approximately 1.672×10−27 kg1.672 \times 10^{-27} \, \text{kg} (or roughly 1 amu)
• Charge: Positive charge (+1+1 or +1.6×10−19 C+1.6 \times 10^{-19} \, \text{C})
• Location in the Atom: Found in the nucleus alongside neutrons
• Role: Protons define the identity of an element. The number of protons in the nucleus of an atom determines its atomic number and thus the chemical element. For example, an atom with one proton is hydrogen, two protons is helium, and so on.
• Stability: Protons are stable when present in a nucleus and do not undergo decay under normal conditions.
• Spin: 12\frac{1}{2}, making it a fermion.
3. Electron
• Symbol: e−e^-
• Mass: Approximately 9.11×10−31 kg9.11 \times 10^{-31} \, \text{kg} (or about 1/18361/1836 of the mass of a proton or neutron)
• Charge: Negative charge (−1-1 or −1.6×10−19 C-1.6 \times 10^{-19} \, \text{C})
• Location in the Atom: Found in the electron cloud or orbitals around the nucleus
• Role: Electrons are involved in chemical bonding and reactions. Their arrangement in electron shells around the nucleus determines the chemical properties of the atom. Electrons are responsible for the electrical conductivity in materials.
• Stability: Electrons are stable particles, and they do not decay under normal conditions.
• Spin: 12\frac{1}{2}, making it a fermion.
Key Differences:
Property Neutron Proton Electron
Symbol nn pp e−e^-
Mass 1.675×10−27 kg1.675 \times 10^{-27} \, \text{kg} 1.672×10−27 kg1.672 \times 10^{-27} \, \text{kg} 9.11×10−31 kg9.11 \times 10^{-31} \, \text{kg}
Charge Neutral (00) Positive (+1+1) Negative (−1-1)
Location Nucleus Nucleus Electron cloud
Role Stabilizes nucleus Defines atomic number Determines chemical properties, electrical conduction
Stability Unstable outside nucleus, stable inside Stable Stable
Spin 12\frac{1}{2} 12\frac{1}{2} 12\frac{1}{2}
Conclusion:
• Neutrons and protons are both located in the atomic nucleus and have similar masses, but neutrons have no charge while protons are positively charged.
• Electrons are much lighter than protons and neutrons, and they orbit the nucleus, carrying a negative charge. They are essential for chemical reactions and electricity.
• The differences in mass and charge between protons, neutrons, and electrons contribute to the stability of the atom and the nature of atomic interactions.