Problem: The wave functions for the 1s and 2s orbitals are as follows:1s   ψ = (1/π)1/2 (1/a03/2) exp(–r/a0)2s   ψ = (1/32π)1/2 (1/a03/2 ) (–2r/a0 )exp(–r/a0)where a0 is a constant (a0 = 53 pm) and r is the distance from the nucleus. Use Microsoft Excel to make a plot of each of these wave functions for values of r ranging from 0 pm to 200 pm. Identify the node in the 2s wave function.

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The wave functions for the 1s and 2s orbitals are as follows:
1s   ψ = (1/π)1/2 (1/a03/2) exp(–r/a0)
2s   ψ = (1/32π)1/2 (1/a03/2 ) (–2r/a0 )exp(–r/a0)
where a0 is a constant (a0 = 53 pm) and r is the distance from the nucleus. Use Microsoft Excel to make a plot of each of these wave functions for values of r ranging from 0 pm to 200 pm. Identify the node in the 2s wave function.

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