The electronic configuration of the atom having maximum difference in first and second ionisation energies is

MCQ

1s², 2s², 2p⁶, 3s¹

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Chapter 3: Periodic Classification Of Elements - Evaluation [Page 95]

Chapter 3 Periodic Classification Of Elements
Evaluation | Q I. 15. | Page 95

Which of the following elements will have the highest electronegativity?

Identify the wrong statement.

Which one of the following arrangements represent the correct order of least negative to most negative electron gain enthalpy

The element with positive electron gain enthalpy is

The correct order of decreasing electronegativity values among the elements X, Y, Z and A with atomic numbers 4, 8, 7 and 12 respectively

Assertion: Helium has the highest value of ionisation energy among all the elements known

Reason: Helium has the highest value of electron affinity among all the elements known

The First ionisation potential of Na, Mg and Si are 496, 737 and 786 kJ mol^-1 respectively. The ionisation potential of Al will be closer to

Which one of the following is true about metallic character when we move from left to right in a period and top to bottom in a group?

What are isoelectronic ions? Give examples.

Explain the Pauling method for the determination of ionic radius.