Canal rays are positively charged radiations that can pass through perforated cathode plate. These rays consist of positively charged particles known as protons.
An electron is a negatively charged particle, whereas a proton is a positively charged particle. The magnitude of their charges is equal. Therefore, an atom containing one electron and one proton will not carry any charge. Thus, it will be a neutral atom.
As per Thomson’s model of the atom, an atom consists both negative and positive charges which are equal in number and magnitude. So, they balance each other as a result of which atom as a whole is electrically neutral.
On the basis of Rutherford's model of an atom, protons are present in the nucleus of an atom.
Bohr's model of an atom with three shells