Question

1.What is inside a proton?
2.Who invented electron?​

Answer 1

Answer:

ans 1) Protons are composite particles composed of three valence quarks: two up quarks of charge + 23e and one down quark of charge − 13e.

Charge radius: 0.8414(19) fm

Electric charge: +1 e; 1.602176634×10−19 C

Composition: 2 up quarks (u), 1 down quark (d) .

2)Electron was discovered by J. J. Thomson in 1897 when he was studying the properties of cathode ray.

Explanation:

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