Question

suppose a phosphorous atom forms a bond with a fluorine atom. what type of bond must form between these two elements?
a) covalent bond
b) metallic bond
c) polar covalent bond
d) ionic bond
question 17 (5 points)
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in general, which of the following statements about electron - pair geometries is true?
a) they maximize the polarity of valence electrons to minimize the attraction between them.
b) they maximize the space between valence electrons to minimize the repulsion between them.
c) they maximize the polarity of valence electrons to minimize the repulsion between them.

Explanation:

For the first question: Phosphorus and fluorine are both non - metals. Non - metals form covalent bonds. Since fluorine is more electronegative than phosphorus, the electrons in the bond are not shared equally, resulting in a polar covalent bond.
For the second question: Electron - pair geometries are based on the principle that valence electron pairs (both bonding and non - bonding) repel each other. To minimize this repulsion, they maximize the space between them.

Answer:

First question: C) Polar covalent bond
Second question: B) They maximize the space between valence electrons to minimize the repulsion between them.