The edge length of a face centered cubic cell of an ionic substance is 508 pm .If the radius of the carbon is 110pm , the radius of the anion is

Question

$(a)\;288\;pm\qquad(b)\;398\;pm\qquad(c)\;618\;pm\qquad(d)\;144\;pm$

Comments

If the question is bcc what is the formula used