Assertion: atom's electron | /r/Synonym | valence electrons
Facets:
Source sentences:
text: The outermost electron shell of an atom in its uncombined state is known as the valence shell, and the electrons in that shell are called valence electrons.
text: Unpaired electrons in the highest energy level are called valence electrons; when the valence electrons from two or more atoms form pairs, they are not lost from one atom and gained by another.