Which of the following statement(s) is/are trueA. ionisation energy `prop (1)/("Screening effect")`B. The first ionisation energies of Be and Mg are more than ionisation energies of B and Al respectivelyC. Atomic and ionic radii of Niobium and Tantalum are almost sameD. Metallic and covalent radii of potassium are `2.3 A^(@)` and `2.03 A^(@)` respectively .

Which of the following statement(s) is/are trueA. ionisation energy `p

1.	Which of the following statement(s) is/are trueA. ionisation energy `prop (1)/("Screening effect")`B. The first ionisation energies of Be and Mg are more than ionisation energies of B and Al respectivelyC. Atomic and ionic radii of Niobium and Tantalum are almost sameD. Metallic and covalent radii of potassium are `2.3 A^(@)` and `2.03 A^(@)` respectively .
Answer» Correct Answer - A::B::C::D

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