Rutherford’s experiments on the scattering of particles by thin metal foils established
choose correct answer
a)The mass and charge of an atom are concentrated in a nucleus
b)Electrons are fundamental particles of all matter.
c)All electrons have the same charge.
d)Atoms are electrically neutral
Dear Student,
Rutherford atomic model, nuclear atom, or planetary model of the atom, description of the structure of atoms. The model described the atom as a tiny, dense, positively charged core called a nucleus, in which nearly all the mass is concentrated, around which the light, negative constituents, called electrons, circulate at some distance.
The nucleus was postulated as small and dense to account for the scattering of alpha particles from thin gold foil, as observed in a series of experiments by him. As during the experiment most of the alpha particles passed through the gold foil, which implied that atoms are composed of free space. Some alpha particles were deflected slightly, suggesting interactions with other positively charged particles within the atom. Still other alpha particles were scattered at large angles, while a very few even bounced back towards the source. Only a positively charged and relatively heavy target particle, such as the proposed nucleus, could account for such strong repulsion.
Hence option a is correct.
Regards
Rutherford atomic model, nuclear atom, or planetary model of the atom, description of the structure of atoms. The model described the atom as a tiny, dense, positively charged core called a nucleus, in which nearly all the mass is concentrated, around which the light, negative constituents, called electrons, circulate at some distance.
The nucleus was postulated as small and dense to account for the scattering of alpha particles from thin gold foil, as observed in a series of experiments by him. As during the experiment most of the alpha particles passed through the gold foil, which implied that atoms are composed of free space. Some alpha particles were deflected slightly, suggesting interactions with other positively charged particles within the atom. Still other alpha particles were scattered at large angles, while a very few even bounced back towards the source. Only a positively charged and relatively heavy target particle, such as the proposed nucleus, could account for such strong repulsion.
Hence option a is correct.
Regards