Question
Chemistry Question on The solid state
The number of atoms in 4.5 g of a face-centred cubic crystal with edge length 300 pm is :
(Given density=10gcm-3 and NA=6.022×1023).
A
6.6×1020
B
6.6×1023
C
6.6×1019
D
6.6×1022
Answer
6.6×1022
Explanation
Solution
The correct answer is Option (D) : 6.6×1022