Question

A solid AB has ZnS-type structure. The edge length
of the unit cell is 400 pm and the radius of B-ion
is 0.130 nm. Then the radius of A+ ion is
(1) 35.8 pm
(2) 43.2 pm
(3) 60.5 pm
(4) 53.2 pm​

Answer 1

Answer:

(2) 43.2 pm

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