Stable electron configurations are likely to contain

filled energy sub levels.

Explanation:

Stable electron configurations are likely to contain filled energy sub levels.

For each entity and ion, the electron configurations are special. The electron structure of an atom or ion shows us where electrons are clustered around an atom or ion's nucleus. There are seven levels of energy and four types of orbitals in which electrons are in an atom.

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.

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