Question

Which statement about electrons in atoms of different elements was established by J. J. Thomson's experiments?

Options

• These electrons are identical for all atoms.

• These electrons are concentrated in the nucleus.

• These electrons are an isotope of radon.

• These electrons are uniformly distributed positive charge.

Answer 1

Electrons are negatively charged constituents found in atoms of different elements. Thomson's experiments showed that the electrons are identical for all atoms.