Solar system and atom theory? A single atom has a shield and electron around it. The farther the shield, the weaker the attraction of electron. So how about the sun and the planet. Is it the same theory?

Md Ariful Islam

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The force on a planet is given by Newton’s universal law of gravitation ($F = -G.(m_1.m_2)/r^2$)

The force on an electron circling the nucleus is given by $F = 1/(4pi epsilon_0)(q_1.q_2)/r^2$

They are similar, both varying inversely with distance squared, but not identical - it is mass that causes gravitational attraction, and charge that causes electrostatic attraction.

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