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 . 0 6 × 1 0 2 0 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 H e + 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 L i 2 + ion.

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