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# Physics question

For the same kinetic energy the momentum shall be minimum for which particle ? A. Electron B. Proton C. Neutron D. Alpha particle

Note by Ritvik Choudhary
4 years, 8 months ago

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Electron As momentum(P) = $$\sqrt{2*M*E}$$ Where M = mass of particle and E is the kinetic energy of the particle. As E is same for the particles, Hence Momentum is directly proportional to $$\sqrt{M}$$. As electron ha minimum mass among them, so momentum of electron is minimum.

- 4 years, 8 months ago

why electron cloud make atom more stable?

- 2 years, 11 months ago

it's proton.. cuz' if according atom theory.. electron move around the element.. and proton stay inside the nucleus.. therefore.. proton.. can't be taken out so easily... if u're able to pluck out the proton.. means u're doing nuclear fision ady~

- 4 years, 8 months ago