In a crystalline solid, W atoms are at corners, O atoms at edge centres and Na at cube centre, The formula of solid is

In a crystalline solid, W atoms are at corners, O atoms at edge centre

1.	In a crystalline solid, W atoms are at corners, O atoms at edge centres and Na at cube centre, The formula of solid is
Answer» `Na_(4)WO_(3)` `NaWO_(3)` `NaW_(8)O_(3)` `NaWO_(4)` SOLUTION :W (at corner) `=8XX(1)/(2)=1` , O (at edges) `=12xx(1)/(4)=3` Na (at centre )=1 `therefore` FORMULA is `NaWO_(3)`