The least active metal of those represented below has a electron configuration abbreviated as 1.)2-8-1
2.) 2-8-8-2
3.) 2-8-18-8-1
4.) 2-8-18-18-8-1

answer; /// i do believe that the correct answer is (c)nuclear bond

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

idk what the question is about