alleryWhy does boron’s first ionization energy fall below beryllium’s?
ABoron adds an electron shell
BBeryllium's 2s is higher
CBoron's 2p electron is higher
DBeryllium has less shielding
Answer & Solution
Correct answer: C. Boron's 2p electron is higher
Boron’s outer 2p electron is farther from the nucleus than beryllium’s 2s electron.
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