Question

Valence electrons are present in the
1. Middle orbits
2. D orbit
3. Innermost orbit
4. Outermost orbit of the atom

Answer 1

Correct Answer - Option 4 : Outermost orbit of the atom

The current answer is the Outermost orbit of the atom.

• Valence is the number of electrons an atom must lose or gain to attain the nearest noble gas or inert gas electronic configuration.
  • “Electrons in the outer shells that are not filled are called valence electrons”.
• The valence electrons are part of most of the chemical reactions because they contain more energy compared to the electrons present in inner orbits.
• Meanwhile, the number of valence electrons present also helps us determine a specific element’s chemical properties, such as its valence or valency, the formation of bonds with other elements.
• It also gives us an idea of how readily the atoms can form bonds, the number of unpaired electrons, and how many atoms can take part.

• Some key characteristics of a valence electron are:
  • For the main group elements, the valence electron exists only in the outermost electron shell.
  • A valence electron can exist in the inner shell of a transition metal.
  • An atom consisting of a closed shell of valence electrons will usually be chemically inert.
  • A valence electron can either absorb or release energy in the form of a photon.
  • Valence electrons also determine the electrical conductivity of an element.