Two elements C and D have atomic numbers 36 and 58 respectively. On the basis of electronic configuration predict the following: (i) The group, period, and block to which each element belongs,
The electronic configuration of elements C and D are: C (At. no 36) = 1s2, 2s2 2p6, 3s2 3p6 3d10, 4s2 4p6. D (At. no. 58) = 1s2, 2s2 2p6, 3s2 3p6 3d10, 4s2 4p6, 5s2 4d10 5p6,6s2 5d1 4f1. The element C belongs to the 18th group, lies in the 4th period, and belongs to the p-block of elements. The element D belongs to lanthanides, lies in the 6th period, and belongs to/-block of elements.
