Question

Class 11Th - Chemistry , Give Me Notes Of Structure Of Atom ​

Answer 1

• Proton

The proton is a positive charge (+1), which weighs 1.6727 * 10 ^ (- 27) kg. In order to simplify the calculation, we weigh it in the atomic mass unit.

1amu = 1.6605 * 10 ^ (- 27) is equal to kg. Hence the weight of proton was 1.007316amu. According to the new rules, amu is now just written "u".

• Eletron

Elektron is a negative charge particle. It weighs 9.110 * 10 (-31) kg, which is 0.000549u. This proton is 2000 times lighter.

• Neutro

In 1932, J. Chadwick discovered another sub atomic particle, which had no charge, but its weight was nearly equal to proton - 1.6750 * 10 ^ (- 27) kg or 1.008701u. It was named neutron

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Answer 2

The tiny atomic nucleus is the centre of an atom constituting positively charged particles “protons” and uncharged particles “neutrons.” ... Electrons revolve around the orbit or centre of the nucleus. The attraction between the protons and electrons holds the structure of an atomtogether.