Chemistry, 28.06.2019 10:00 stphdrn4347

Which of the following observations indicates that atoms of all elements contain small, negatively charged particles? a - alpha particles are repelled by cathode rays of elements. b- cathode rays are deflected towards a positively charged rod. c- a particular frequency of light is produced by a gas in an excited state. d- certain areas of the atom called orbitals contain all the charged particles.

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Which of the following observations indicates that atoms of all elements contain small, negatively c...