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AP Chemistry
1.7 Periodic Trends
1.5 Atomic Structure and Electron Configuration
BeginnerMCQConceptual13.5k
A student investigates periodic trends and compiles the valence electron configurations and first ionization energies for phosphorus and sulfur, shown in the table below.

ElementValence Electron ConfigurationFirst Ionization Energy (\(\text{kJ/mol}\))
\(\text{P}\)\(3s^2 3p^3\)\(1012\)
\(\text{S}\)\(3s^2 3p^4\)\(1000\)

Which of the following statements correctly identifies the element from which an electron is more easily removed and provides the valid chemical reasoning?

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