Electron Configurations Worksheet Page 7

Extension Questions

Model 3 – Orbital Diagram for an Atom of Element X

16. Consider the orbital diagram in Model 3.

a. How many electrons are there in one atom of element X?

b. Identify element X and provide its ground state electron configuration. Assume the atom is

neutral.

c. Is the arrangement of electrons in the orbital diagram in Model 3 higher in total potential

energy or lower in total potential energy than the ground state electron configuration of

element X? Explain your reasoning.

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An excited state electron configuration is any electron configuration for an atom that contains the

correct total number of electrons but has a higher total electron potential energy than the ground state

electron configuration.

17. Write an electron configuration for element X that shows the atom in a different excited state

than the one illustrated in Model 3.

Electron Configuration

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