What is the number of electrons present in the valence shell of P in PCl3:
Correct answer: C. 8
- A. 4
- B. 6
- C. 8
- D. 2
Explanation
Finally, we need to count the number of electrons in the valence shell. In the 3rd shell, there are 2 electrons in the 3s orbital and 3 electrons in the 3p orbital. So, the number of electrons present in the valency shell of P in PCl₃ is 5.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
Practise s-Block and p-Block Elements
1,359 free s-Block and p-Block Elements MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More s-Block and p-Block Elements questions
Which of the following is used at the tips of match stick:
When red phosphorous is heated with HNO3 it forms:
Gold dissolve in Aqua regia to give:
Phosphorous shows oxidation state (+3) in which of the following:
Which element is the most abundant in the earth's crust:
The brown gas formed when metal reduces HNO3 is: