Question

write the electron - dot notation for the element p. 1. . p • 2. : p : 3. p • 4. ˙p • 5. ˙p • 6. none of these 7. . p : 8. p : 9. . p :

Explanation:

Step1: Determine phosphorus's valence electrons

Phosphorus (P) is in group 15 of the periodic - table, so it has 5 valence electrons.

Step2: Write electron - dot notation

The electron - dot notation shows the symbol of the element surrounded by dots representing valence electrons. We place the dots one at a time on the four sides of the symbol and then pair them up until all 5 valence electrons are represented. The correct electron - dot notation for P is:
$.\ddot{P}.$

Answer:

1. $.\ddot{P}.$