Rutherford's model only predicts that the mass of an electron is much smaller than the mass of the central nucleus.
Rutherford's model was similar to Thomson's model in that both described atoms as having a positively charged center (nucleus) surrounded by negatively charged electrons. However, Rutherford's model differed in that he proposed that the majority of an atom's mass and positive charge was concentrated in the nucleus, with electrons orbiting around it, while Thomson's model suggested that the positive charge was uniformly distributed throughout the atom.
how many electrons it has---how many valence electrons and how many levels of electrons. its Atomic Mass its atomic number
Rutherford's experiment is called the Planetary Experiment because of Rutherford's concentration on most of the atom's mass into a very small core. The core would contain most of the atom's mass and in the same way the sun contains most of the solar systems mass.
That the mass of an atom is mostly located in a small nucleus.
I predict rain.
In the plum pudding model, most of the mass is thought to be concentrated in a diffuse, positively charged "pudding" that fills the atom. This pudding is interspersed with negatively charged electrons, resembling plums within the pudding. The model, proposed by J.J. Thomson in the early 20th century, suggests that the mass of the atom is primarily due to this positive charge, with the electrons contributing to the overall structure rather than mass. However, this model has since been replaced by the more accurate nuclear model of the atom.
The effective mass calculation can be used to understand how electrons move in a material, which helps determine its electronic properties. By calculating the effective mass, scientists can predict how easily electrons can move through the material, its conductivity, and other important characteristics related to its electronic behavior.
Rutherfords gold foil experiment demonstrated the existence of the nucleus and lead to the model of a positive nucleus surrounded by electrons. This model was further developed by Bohr and then by Schroedinger and others to become the quantum mechanical model we now have with electrons in orbitals around the central positively charged nucleus..
That mass will not disappear or be created.
J.J. Thompson discovered that cathode rays were made up of electrons, and determined the mass-to-charge ratio of the electrons. He found that the mass-to-charge ratio of the cathode rays was much smaller than that of hydrogen, and concluded that constituent particles (electrons) must be the building blocks of atoms. He modeled the neutral atom as a sphere of negatively charged electrons distributed amongst positively charged protons. This is known as the "plum pudding" model or the Thompson model of the electron.Ernest Rutherford proved that the Thompson model was incorrect when he discovered that gold atoms consist of an outside layer of electrons, with a center nucleus densely packed with protons.
An element's atomic mass does not include the mass of its electrons. Electrons have such a small mass compared to protons and neutrons that they are not typically included in calculations of atomic mass.
The Rutherford atomic model contain a central, positive, concentrated mass called atomic nucleus; around the nucleus are moving electrons.