Question

the total number of electrons in one mole of fluorine molecules (f₂) is

1. 9.
2. 9 × 6.0 × 10²³.
3. 18.99 × 6.0 × 10²³.
4. 18 × 6.0 × 10²³.
5. 18.

Explanation:

Step1: Determine electrons in one F atom

Fluorine (F) has an atomic number of 9, so one F atom has 9 electrons.

Step2: Electrons in one \( F_2 \) molecule

In one \( F_2 \) molecule, there are \( 2\times9 = 18 \) electrons.

Step3: Electrons in one mole of \( F_2 \)

One mole of any substance contains \( 6.0\times10^{23} \) molecules (Avogadro's number). So, total electrons in one mole of \( F_2 \) is \( 18\times6.0\times10^{23} \).

Answer:

1. \( 18 \times 6.0 \times 10^{23} \)