Before knowing the Valence electrons of any element, lemme recommend you something...
Bring a periodic table near you and observe carefully about the groups and periods.
Groups are the vertical column and periods are the horizontal rows.
Now spot the element phosphorus.
You will find phosphorus with atomic number 15. The electronic configuration will be 2,8,5. Electrons in outermost cell is 5. Hence, Number of Valence electrons is 5(Ans)
Answers & Comments
Phosphorus is in group VA so it has 5 valence electrons and Oxygen is in group VIA so each oxygen has 6 valence electrons.
Explanation:
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Required Answer:-
Before knowing the Valence electrons of any element, lemme recommend you something...
You will find phosphorus with atomic number 15. The electronic configuration will be 2,8,5. Electrons in outermost cell is 5. Hence, Number of Valence electrons is 5 (Ans)
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