C)tilaiges o ue tos aie silii u) ivieuciung s coistait uecreases if the value of radius ratio r is 0.213, then coordination number of cation is: (d) 6 (a) 2 for

C)Tilaiges o Ue ToS aie silii u) ivieuciung S COIstait uecreases If the value of radius ratio r is 0.213, then coordination number of cation is: (d) 6 (a) 2 For a simple cubic svstem the spacing of (100). 110) and (11) planes are in the ratio of: (b) 4 4 (c)3