Who said electrons are scattered around the nucleus at a distance

Ernest Rutherford

Explanation:

Rutherford, through his famous 'α-particle scattering experiment' found that most of α-particles passed through gold foil undeflected and very small fraction of α-particles reflected back. Based on this observation he concluded that positive charge and most of the mass of atom is concentrated in very small region called 'nucleus' and it is surrounded by negatively charged particle called 'electron' that continuously moves around nucleus in circular path.

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.

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