An atom is chemically stable when it’s is completely filled with

an atom is chemically stable when its outer layer is completely filled with energy. im pretty sure this is right

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19

answer; how far out of place which the object finished relative to the starting location;