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If size of an atom (~~10^(-10)m) is scal...

If size of an atom `(~~10^(-10)m)` is scaled up to 1m, what would be the size of nucleus `(~~ 10^(-14) m)?`

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The correct Answer is:
`10^(-4)m`
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If the size of the nucleus ( in the range of 10^(-15)" to "10^(-14)m ) is scaled upto the tip of a sharp pin (approx 10^(-5) m) , what roughly is the size of the atom? Assume tip of the pin to be in the range 10^(5)m " to "10^(-4)m .

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According to Thomson's model, every atom consists of a positively charged sphere of radius 10^(-10)m in which entire mass and positive charge of the atom are uniformly distributed. Inside the sphere, electrons are embedded like seeds in a watermelon. According Rutherford, entire positive charge and mass of the atom are concentrated in a tiny central core of the atom, which is called atomic nucleus. Size of nucleus ~~10^(-15)m . The nucleus contains proton and neutrons. Negatively charged electrons revolve around the nucleus in circular orbits. The size of atom is of the order of

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