Question: @$ % $#$ % ^ & ^ % $#$& ^ % $$ ^ % $# What is the minimum energy required to remove an electron

@$%$#$%^&^%$#$&^%$$^%$# What is the minimum energy required to remove an electron completely from a metal surface called?
A) Work function
B) Ionization energy
C) Electron affinity
D) Fermi energy

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