What
is the role of a-particles in
discovery of
neutrons. (not from g oogle)
Answers
Explanation:
An atom is made up of three fundamental particles like electron, proton and neutron. All particle has its own importance. The electrons are revolving around nucleus having negative charge which form an electron pair and help in bonding the elements and form different kinds of material.
Protons combine with electron and neutron to form an atom. Proton has positive charge which also called elementary charge. Proton and neutron having equal number combine to form nucleus. Proton has mass which gives stability to the atom. Also the number of protons in an atom plays a major role because if the number of protons is less then the electron the behaviour of the matter changes it also become radioactive material.
Neutron is charge less particle in an atom. It has mass but slightly less than proton. It is present in nucleus which plays important role to stable an atom. The neutrons and protons are together in a nucleus due the strong nuclear force which makes them to remain in the form. Proton-proton has repletion but the neutrons apply an even stronger force on the protons in a nucleus. This force can only be applied over very small distances, so neutrons have to pack very tightly against the protons in a nucleus, which is why a nucleus is so dense.
Atoms of an element that contain varying numbers of neutrons are called isotopes of that element. Every isotope of an element contains the same number of protons, but different numbers of neutrons. The number of protons in the nucleus of an atom is called its atomic number (Z), which identifies the atom.
Answer:
Chadwick measured the range of these protons, and also measured how the new radiation impacted the atoms of various gases. He found that the new radiation consisted of not gamma rays, but uncharged particles with about the same mass as the proton. These particles were neutrons.