Question

who discovered protons and in which year ​

Answer 1

Answer:

hy dude ur answer is

Explanation:

The discovery of the proton is credited to Ernest Rutherford, who proved that the nucleus of the hydrogen atom (i.e. a proton) is present in the nuclei of all other atoms in the year 1917. Based on the conclusions drawn from the gold-foil experiment, Rutherford is also credited with the discovery of the atomic nucleus.

Answer 2

Explanation:

Discovery of Neutrons

• 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. This penetrating radiation was unaffected by electric fields and was, therefore, assumed to be gamma radiation.

• In the year 1932, the French scientists Frederic Joliot-Curie and Irene Joliot-Curie observed that this unusually penetrating radiation, when incident on paraffin wax (or other compounds rich in hydrogen), caused the ejection of high energy protons (~5 MeV). The Italian physicist Ettore Majorana suggested the existence of a neutral particle in the nucleus of the atom which was responsible for the manner in which the radiation interacted with protons.

• The presence of neutral particles in the nuclei of atoms was also suggested by Ernest Rutherford in the year 1920. He suggested that a neutrally charged particle, consisting of a proton and an electron bound to each other, also resided in the nuclei of atoms. He coined the term ‘neutron’ to refer to these neutrally charged particles.

Who Discovered Neutrons?

• The British physicist Sir James Chadwick discovered neutrons in the year 1932. He was awarded the Nobel Prize in Physics in the year 1935 for this discovery.

• The Neutron was Discovered by James Chadwick

• It is important to note that the neutron was first theorized by Ernest Rutherford in the year 1920.