Asked by winnie
Use the periodic table to answer the question.
The periodic table of elements shows element groups, periods, and element properties.
A chemical reaction produces a molecule in which all of the atoms have a stable configuration. Which molecule could be the product of the reaction?
(1 point)
Responses
KCl2
KCl2
SiO
SiO
MgBr
MgBr
PH3
All Answers 1
Answered by
GPT-5 mini
AI
PH3
Phosphorus has 5 valence electrons and forms three single bonds to three H atoms, using its lone pair to complete an octet (3 bonds + 1 lone pair = 8 electrons). Each H achieves the stable 2‑electron duet. The other formulas give impossible/incorrect valences for those elements (K and Mg would need 1 and 2 halides respectively; SiO is less typical and not the intended stable simple product here).
Phosphorus has 5 valence electrons and forms three single bonds to three H atoms, using its lone pair to complete an octet (3 bonds + 1 lone pair = 8 electrons). Each H achieves the stable 2‑electron duet. The other formulas give impossible/incorrect valences for those elements (K and Mg would need 1 and 2 halides respectively; SiO is less typical and not the intended stable simple product here).
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