Which of the following statements is/are correct?
(A) The coordination number of each type of ion in CsCl is 8.
(B) A metal that crystallises in BCC structure has a coordination ion number 12.
(C) A unit cell of an ionic cyrstal shares some of its ions with other unit cells.
(D) The length of the unit cell in NaCl is 552 pm. [rNa+ =95pm; rcl-= 181pm]
