What is the relative charge of a proton and neutron?

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SSC MTS (2022) Official Paper (Held On: 15 Jun, 2023 Shift 2)
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  1. −1 and +1 respectively
  2. +1 and −1 respectively
  3. +1 and 0 respectively
  4. −1 and 0 respectively

Answer (Detailed Solution Below)

Option 3 : +1 and 0 respectively
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SSC MTS 2024 Official Paper (Held On: 01 Oct, 2024 Shift 1)
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Detailed Solution

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The correct answer is +1 and 0 respectively.Key Points

  • Proton has a relative charge of +1, while neutron has a relative charge of 0.
  • The charge of an atom is determined by the number of protons and electrons it has.
  • Protons and neutrons are both found in the nucleus of an atom.
  • The number of protons in an atom is the atomic number, while the total number of protons and neutrons is the mass number.
  • In an atom, the number of electrons is equal to the number of protons, making the atom electrically neutral.​

Additional Information

  • A negatively charged subatomic particle known as an electron can be free (not bound) or bound to an atom.
  • The discovery of the electron is credited to J. J. Thomson.
  • Each subshell that makes up the KLMN shells is only permitted a certain number of electrons.
  • The maximum number of electrons in the s subshell is two, the maximum number in the p subshell is six, the maximum number in the d subshell is ten, and the maximum number in the f subshell is fourteen.

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