arrangement of particles atom

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Energy levels of electrons are also called as

Energy levels of electrons are also called as
  • A. shells
  • B. orbits
  • C. Both A and B
  • D. Photons
  • Correct Answer: Option A

Valence electrons refer to the

Valence electrons refer to the
  • A. total number of electrons
  • B. total number of protons and neutrons in nucleus
  • C. total number of electrons in outermost shell
  • D. two electrons in duplet
  • Correct Answer: Option C