A sudden large jump between the values of second and third ionisation energies of an element would be associated with the electronic configuration
1s2, 2s2, 2p6, 3s2
1s2, 2s2p6, 3s2 – In III transition e– is to be removed from stable configuration.
Which of the following has largest size?
Which of the following has largest ionic radius?
Which of the following ion is the smallest ion?
Which of the following is the smallest in size?
The smallest among the following ions is
In the isoelectronic species the ionic radii (Å) of N3–, O2– and F– are respectively given by
The trivalent ion having largest size in lanthanide series is
Which of the following elements will have the lowest first ionisation energy?
The correct order of ionisation energy for comparing carbon, nitrogen and oxygen is
Which of the following isoelectronic ions has lowest ionisation energy?