which atomic model states that it is impossible to know the exact location of electrons around the…

which atomic model states that it is impossible to know the exact location of electrons around the nucleus?\no bohr model\no dalton model\no plum pudding model\no electron - cloud model
Answer
Brief Explanations:
The electron - cloud model is based on quantum mechanics. It states that due to the wave - particle duality of electrons, it's impossible to know both the exact position and momentum of an electron simultaneously, so the exact location of electrons around the nucleus can't be known. The Bohr model has electrons in fixed orbits, the Dalton model considered atoms as indivisible spheres, and the plum - pudding model had electrons embedded in a positive sphere, none of which have this uncertainty principle concept.
Answer:
D. electron - cloud model