In comparison to boron, beryllium has:

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Canvas Classes · Accepted Answer

Strategy:
 Compare Beryllium () and Boron () regarding their nuclear charge and ionization enthalpy anomaly.

Step 1: Nuclear Charge
Atomic number of Beryllium . Atomic number of Boron .
Beryllium has lesser nuclear charge.

Step 2: Ionization Enthalpy
-  (): Filled stable subshell.
-  (): One -electron is easier to remove.
Thus, .

Beryllium has lesser nuclear charge and greater first ionization enthalpy.

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