Worksheet: Orbital Radii in the Bohr Model

In this worksheet, we will practice using the Bohr model to calculate the radii of electron shells in hydrogenic atoms.

Q1:

Using the Bohr model, calculate the orbital radius of an electron in the hydrogen atom if the energy of the electron is 6.06×10 J.

Q2:

Using the Bohr model, calculate to 4 significant figures the orbital radius of an electron in the 𝑛=8 energy level of the hydrogen atom.

Q3:

Using the Bohr model, calculate to 4 significant figures the orbital radius of an electron in the He+ ion if the energy of the electron is 6.05 eV.

Q4:

Using the Bohr model, calculate to 4 significant figures the orbital radius of an electron in the 𝑛=4 energy level of the Li2+ ion.

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