Rutherford proposed the nucleus concentration of positive charge in an atom while the cloud model explains electron distribution. The term 'atom' is derived from Greek and Schrodinger used 'clouds of probability'.
Rutherford proposed that the positive charge of an atom is concentrated in the nucleus. This was supported by his gold foil experiment that led him to discover the nucleus. The cloud model of the atom, where electrons are found in a spherical cloud of positive charge, was proposed to explain the distribution of electrons around the nucleus.
The term 'atom' originates from the Greek word atomos, meaning indivisible, which was used to describe the smallest unit of matter that retains its properties. Schrodinger referred to the electron distribution around the nucleus as 'clouds of probability' in his quantum mechanical model.
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