The edges length of a face-centered cubic cell of an ionic substance i

1.	The edges length of a face-centered cubic cell of an ionic substance is 508pm. If the radius of the cation is 110pm, the radius of the anion is
Answer» Answer: 144 pm Explanation: For an FCC SOLID, EDGE LENGTH , a=2(r++r−) ⇒2(110+r−)=508 ⇒220+2r−=508 ⇒2r−=508−220 ⇒2r−=288 ∴r−=144pm

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

Answer»

Answer:

144 pm

Explanation:

For an FCC SOLID, EDGE LENGTH , a=2(r++r−)

⇒2(110+r−)=508

⇒220+2r−=508

⇒2r−=508−220

⇒2r−=288

∴r−=144pm