2 8 8 18 or 2 8 18 32 July 8, 2019 16 32 64 128 2 8 8 18 or 2 8 18 32 periodic table 2 8 8 18 vs 2 8 18 32 2 8 8 18 还是2 8 18 32 8÷2(2+2)=1 or 16
