Question

Which of these is true?

• A. Dalton assumed that atoms are made up of electrons, protons, and neutrons
• B. The alpha particles used in Rutherford's experiment are positively charged particles
• C. In Rutherford's alpha scattering experiment, all of the alpha particles passed through the gold foil.
• D. JJ Thomson determined the charge and mass of electrons

Answer 1

The correct option is B

The alpha particles used in Rutherford's experiment are positively charged particles

The alpha particles used in Rutherford's experiment are positively charged particles, infact each one consists of 2 protons and 2 neutrons.