It is similar to a solar system. The sun is the nucleus with protons and neutrons and the electrons are the planets.
The planetary model of an atom is simple. The nucleus is the planet and the electrons are the moons in the model.
a new model of the atom that describe electrons as being in a cloud
It describes it because it is atom model and it had a nucelus, protoins and electrons
Today the accepted atomic model is quantic.
a nucleus in an electron cloud.
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the atom as a tiny, dense, positively charged core called a nucleus
atoms are mostly empty space
the most probable location of an electron
The best model to describe atomic structure is the Rutherford model
the most probable location of an electron
A physical model is a smaller or larger physical copy of an object. The object being modelled may be small(for example, an atom or cell) or large (for example, the Solar System).