Atoms And Nuclei Question 270

Question: The acceleration of an electron in the first orbit of the hydrogen atom (z=1) is:

Options:

A) h2π2m2r3

B) h28π2m2r3

C) h24π2m2r3

D) h24πm2r3

Show Answer

Answer:

Correct Answer: C

Solution:

  • Speed of electron in first orbit (n=1) of hydrogen atom (z=1), v=e22ε0h r=h2ε0πme2ε0=rπme2h2
    Acceleration of electron,

    v2r=e44ε02h2×πme2h2ε0

    e4×πme24h4ε03

    Eliminating ε0 =e4πme2h64h4r3π3m3e6=h24π2m2r3



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