One way the modern atomic model differs from thomson's atomic model is that electrons are no longer scattered throughout and atom's positive matter like chocolate chips in a cookie dough. instead, each electron is outside of the nucleus occupying a specific

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One way the modern atomic model differs from Thomson's atomic model is that electrons are no longer scattered throughout an atom's positive matter like chocolate chips in a cookie dough. instead, each electron is outside of the nucleus occupying a specific Energy Level.

The modern atomic model is also called the Schrodinger's model or the Quantum Mechanical model. Although atoms are commonly depicted like planets with electrons orbiting it like satellites, in reality, electrons aren't in fixed orbits but there are clouds where there is a bigger probability of finding an electron. This area is called an Energy Level. 

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Mgo2 is the oxidation state of manganese oxide