Respuesta :
Sodium is the element that has the fewest valence electrons. The correct option is B.
What is valance electron?
A valence electron is an electron associated with an atom in the outer shell that can take part in the formation of a chemical bond if the surface layer is not closed.
Both atoms in a single covalent bond contribute one valence electron to form a shared pair.
Valence electrons are electrons in an atom's outermost shell, or energy level. For example, oxygen has six electron, two of which are in the 2s subshell and four of which are in the 2p subshell.
Because the highest energy 3s orbital has one electron, neutral sodium atoms have one valence electron.
Thus, the correct option is B.
For more details regarding valance electron, visit:
https://brainly.com/question/27184107
#SPJ6
