Among the elements A, B, C and D having atomic numbers 9, 10, 11 and 12 respectively the correct order of ionisation energies is

Among the elements A, B, C and D having atomic numbers 9, 10, 11 and 1

1.	Among the elements A, B, C and D having atomic numbers 9, 10, 11 and 12 respectively the correct order of ionisation energies is
Answer» `A GT B gt C gt D` `B gt A gt D gt C` `B gt A gt C gt D` `D gt C gt B gt A` ANSWER :B