Choose the Statement That Is $\textbf{ true: }$

question 68

Multiple Choice

Choose the statement that is $\textbf{ true: }$

• A) Outer electrons efficiently shield one another from nuclear charge
• B) Core electrons effectively shield outer electrons from nuclear charge
• C) Valence electrons are most difficult of all electrons to remove
• D) Core electrons have the lowest ionization energies of all electrons
• E) Two of the above are true.