Chemistry · Periodic Classification of Elements
Boron has a smaller first ionization enthalpy than Beryllium. Consider the following statements: (I) It is easier to remove a 2p electron than a 2s electron. (II) The 2p electron of Boron is more shielded from the nucleus by the inner core of electrons than the 2s electrons of Beryllium. (III) A 2s electron has greater penetration power than a 2p electron. (IV) The atomic radius of Boron is greater than Beryllium. Which of the above statements are correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1(II), (III) and (IV)
- 2(I), (II) and (III)✓
- 3(I), (III) and (IV)
- 4(I), (II) and (IV)
Correct answer
(I), (II) and (III)
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