Rutherford proposed ( ) by analyzing the results of the α particle scattering experiment
A: Atomic nuclear structure model
B: There are neutrons in the nucleus
C: Electrons are part of atoms
D: The nucleus is made up of protons and neutrons
A: Atomic nuclear structure model
B: There are neutrons in the nucleus
C: Electrons are part of atoms
D: The nucleus is made up of protons and neutrons
举一反三
- X-rays are made up of ___. A: electrons B: protons C: photons D: Neutrons
- All atoms of a given element have the same __________. A: mass B: number of protons C: number of neutrons D: number of electrons and neutrons E: density
- The atomic model of Thomson, is overturned Rutherford with the scattering experiment of a-particle.
- Which of the following is not a valid conclusion from Rutherford’s alpha particle scattering experiment? ( ) A: The nucleus must be positively charged B: The nucleus must be very small compared to the atom C: The atom is mainly empty space D: The mass of the atom is mostly concentrated in the nucleus
- The milestone of human understanding of the micro world is A: Thomson discovered electrons by cathode rays. B: Millikan's determination of electronic charge by oil drop experiment . C: Rutherford’s "planetary model" of atomic structure. D: A particle scattering experiment.