Which atomic model states that it is impossible to know the exact location of electrons around the nucleus?
bohr model
dalton model
plum pudding model
electron-cloud model

The answer is the electron-cloud model. Erwin Schrodinger's model, unlike the other models, show electrons as part of a 'cloud' where all electrons occupy the same space at once. This is due to the unpredictable, erratic, and random movements of electrons.