Here's how to calculate the mass of one fluorine atom in grams:

1. Atomic Mass:

* The atomic mass of fluorine (F) is approximately 18.9984 atomic mass units (amu).

2. Conversion to Grams:

* 1 amu = 1.66053906660 × 10^-24 grams

3. Calculation:

* Mass of one fluorine atom = (18.9984 amu) * (1.66053906660 × 10^-24 grams/amu)

* Mass of one fluorine atom ≈ 3.1547 × 10^-23 grams

Therefore, the mass of one fluorine atom is approximately 3.1547 × 10^-23 grams.