The electron that is needed to be involved between atoms is regarded as Valence electrons.
- Valence electron can be regarded as fundamental negatively charged particles that exist in the outermost layer of atoms, when there is formation of chemical bonds.
- These bonds could be any chemical bond such as ionic or covalent and metallic bonds which exist between atoms.
- The change in the atomic structure are been restricted to valence electrons.
- For neutral atoms, there are are the same number of valence electrons and the atom's main group number, which is found in its column on the periodic table.
- For example instance, carbon belongs to group 4 having 4 valence electrons. Oxygen belongs to group 6 having 6 valence electrons.
Therefore, Valence electrons are regarded as electrons present in outermost shell, or electron present in energy level of an atom.
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