Question

Natalie observes these characteristics in the model of an atom. (i) includes positive charge (ii) contains electrons (iii) explains the photoelectric effect (iv) suggests the probable location of electrons Which model is Natalie most likely examining?

Answer 1

this would be the electron-cloud model

Answer 2

Quantum model: phtoeleectric effect is not explained by classical model. Also, the notion that exact location on the electron cannot be determined but just a probable location belongs to quantum model.