Question

on basis of what observation leads to discovery of neutrons explain experiment and mass of neutron​

Answer 1

Answer:

The discovery of neutrons can be traced back to the year 1930 when the German nuclear physicists Herbert Becker and Walther Bothe observed that a penetrating form of radiation was produced when the alpha particles emitted by polonium was incident on relatively light elements such as lithium, beryllium, and boron.

Neutron, neutral subatomic particle that is a constituent of every atomic nucleus except ordinary hydrogen. ... It has no electric charge and a rest mass equal to 1.67493 × 10−27 kg—marginally greater than that of the proton but nearly 1,839 times greater than that of the electron.