One Million Argon Atoms Is Mol of Argon Atoms

Multiple Choice

One million argon atoms is mol of argon atoms.

A) 3
B) 1.0 × 10^{- 6}
C) 1.7 × 10^{- 18}
D) 1.0 × 10⁺⁶
E) 6.0 × 10²³