Question
Download Solution PDFWhich of the following is isoelectric species?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
Isoelectronic Species
- Two species are said to be isoelectronic if they have the same number of electrons.
- This includes atoms or ions, regardless of their chemical nature.
- To find the total number of electrons:
Total Electrons = Atomic Number ± Charge
EXPLANATION:
- Sn94−:
- Atomic number of Sn (in carbon Family)
- Charge = 4− → Add 4 electrons
- Total electrons = 9x4 + 4 = 40
- Bi95+:
- Atomic number of Bi (Nitrogen family)
- Charge = 95+ → Remove 5 electrons
- Total electrons = 9x5 - 5 = 40
Therefore, the isoelectronic species are Sn94-, Bi95+
Last updated on Jul 21, 2025
-> DSSSB PGT Answer Key 2025 has been released on 21st July 2025 on the official website.
-> The DSSSB PGT Notification 2025 has been released for 131 vacancies.
-> Candidates can apply for these vacancies between 8th Juy 2025 o 7th August 2025.
-> The DSSSB PGT Exam for posts under Advt. No. 05/2024 and 07/2023 will be scheduled between 7th to 25th July 2025.
-> The DSSSB PGT Recruitment is also ongoing for 432 vacancies of Advt. No. 10/2024.
-> The selection process consists of a written examination and document verification..
-> Selected Candidates must refer to the DSSSB PGT Previous Year Papers and DSSSB PGT Mock Test to understand the trend of the questions.