Which of the following atomic models is based on the idea that the electrons in an atom form a cloud

Question

Which of the following atomic models is based on the idea that the electrons in an atom form a cloud of probability around the nucleus?

Answer 1

Which of the following atomic models is based on the idea that the electrons in an atom form a cloud of probability around the nucleus?

Bohr model
Rutherford model
Thomson model
Wave mechanical model ✓

Explanation

The wave mechanical (quantum) model treats electrons as waves. It does not give them fixed paths. It describes only the probability of finding an electron in a region, called an orbital or electron cloud.

Bohr’s model used fixed circular orbits, so it does not fit.

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