Question

draw the lewis dot diagram for a f⁻ anion.

Explanation:

Step1: Determine Valence Electrons

Fluorine (F) has 7 valence electrons. The \( F^- \) anion has gained 1 electron, so total valence electrons = \( 7 + 1 = 8 \).

Step2: Draw the Symbol and Electrons

Place the F symbol in the center (or as the atom). Surround it with 8 electrons (4 pairs) as dots. The Lewis dot structure for \( F^- \) is \([:\ddot{F}:]^-\), where the dots represent the 8 valence electrons (3 lone pairs and 1 additional electron from the anion charge, forming 4 pairs total) and the brackets with the negative charge indicate the anion.

Answer:

The Lewis dot diagram for \( \boldsymbol{F^-} \) is a fluorine symbol (\( F \)) surrounded by 8 dots (4 electron pairs) within brackets, with a negative charge outside: \(\boldsymbol{[:\ddot{F}:]^-}\) (using the dot - placing tool, place 8 dots around the F symbol and add the negative charge and brackets as per the drawing interface's options).