Answer:
Potassium (K) = (2,8,8,1)
This is the element that has three(3) filled energy level and one valence electron
4 protons the number of proton has the same number of electron [which is the same as atomic number]
an element's name, chemical symbol, atomic number, atomic mass.
IDK what you are even asking for
Answer a is the correct one
The answer is Noble gas because they have a full octet
