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Why is that gravitational force negligib...

Why is that gravitational force negligible compared to the electrostatic force between a proton and an electron? (Assume the distance between them as `1Å`)

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The acceleration of electron will be `2.5xx10^(22)ms^(-2)` and that of proton `1.4xx10^(19)ms^(-2)`. The acceleration due to gravity is `10ms^(-2)` which far less than what arises due to Coulombian force.
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