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In Intellecta

ECAT hard chemistry MCQs, 15 questions

Practice 15 challenging ECAT chemistry MCQs on discovery of electrons and protons to enhance exam readiness and critical thinking skills with sample questions.

Question 15

What is the primary reason the discovery of the electron was considered a breakthrough in atomic theory?

It explained electrical conductivity. It led to the development of nuclear energy. It explained chemical bonding perfectly. It introduced the concept of subatomic particles.