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Ionization Energy in a Group

APCHEM-EY9HXE

Mendeleev and Moseley found that elements are grouped together based on their valence electron configurations.

How does this affect ionization energy going down the group?

A

Ionization energy increases down the group as the number of electron orbitals increases.

B

Ionization energy increases down the group as the number of electron orbitals decreases.

C

Ionization energy decreases down the group as the number of electron orbitals increases.

D

Ionization energy decreases down the group as the number of electron orbitals decreases.