.Which of the following represents the correct electronic configuration of VII A group elements in the ground state?
Correct answer: C. ns²p⁵
- A. ns²p²
- B. ns²p⁴
- C. ns²p⁵
- D. iodine
Explanation
Group VIIA (or Group 17) elements: These elements, also known as halogens, have seven valence electrons in their outermost shell.Electronic configuration: The general electronic configuration for elements in Group VIIA is ns²p⁵, where "n" represents the principal quantum number of the outermost shell.Breakdown of the configuration:ns²: This part indicates that there are two electrons in the s orbital of the outermost shell.p⁵: This part indicates that there are five electrons in the p orbital of the outermost shell.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Transition Elements
Transition elements are identified by their partially filled d subshells in atoms or common ions. The topic covers the electronic structure of d-block elements, including the filling order of 4s and 3d orbitals, variable oxidation states and the distinction between transition elements and elements with completely filled d subshells.
Practise Transition Elements
531 free Transition 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.