Question

describe j j thomsons plum pudding model of an atom and explain what would happen if alpha particles were fired at atoms (according to the model).

Explanation:

J. J. Thomson's Plum - pudding model proposed that an atom was a uniform, positively - charged sphere with negatively - charged electrons embedded in it like plums in a pudding. If alpha particles (positively charged) were fired at atoms according to this model, the alpha particles would mostly pass straight through the atom because the positive charge was evenly distributed and not concentrated. There would be little to no strong repulsion to deflect the alpha particles significantly.

Answer:

According to J. J. Thomson's Plum - pudding model, most alpha particles would pass straight through the atoms with little to no deflection since the positive charge was uniformly distributed and there was no concentrated positive nucleus to strongly repel the positively - charged alpha particles.