Which of the following is the correct ground state electron configuration for a phosphorus atom? A)1s²2s²2p³ B)1s²2s²2p⁶3s²4p³ C)1s²2s²2p⁶3s²3p³ D)1s²2s²2p⁶3s⁵ E)1s²2s⁸3s⁵

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The ground state electron configuration for a phosphorus atom is 1s2 2s2 2p6 3s2 3p3. Choice C correctly represents this configuration, with the first three shells filled as 1s2 2s2 2p6, and five electrons in the 3rd shell, represented as 3s2 3p3. The other choices either have incorrect numbers of electrons or incorrectly filled shells.

Which of the Following Is the Correct Ground State Electron