Which of the following are TRUE regarding the discovery and properties of neutrons? — Atomic Structure Chemistry Question

💡 Solution & Explanation

Neutrons were discovered by Chadwick by bombarding $^{9}_{4}\text{Be}$ with $\alpha$ -particles ($^{4}_{2}\text{He}$). They are electrically neutral and unaffected by electric or magnetic fields. Their mass ($1.6749 \times 10^{-27}$ kg) is slightly greater than that of a proton ($1.6726 \times 10^{-27}$ kg). [28-31]