Where on the periodic table do you find elements that have full valence electron shells?

Question

A. across the bottom of the periodic table
B. on the left side of the periodic table
C. across the top of the periodic table
D. on the right side of the periodic table

Answer 1

D. on the right side of the periodic table

Elements with full valence electron shells are typically found in Group 18 of the periodic table, which consists of the noble gases (such as helium, neon, argon, krypton, xenon, and radon). These elements have complete outer electron shells, making them stable and largely unreactive.