Question

What are isoelectronic species with example?

Answer 1

Answer:

Atoms and ions that have the same electron configuration are said to be isoelectronic. Examples of isoelectronic species are N3–, O2–, F–, Ne, Na+, Mg2+, and Al3+ (1s22s22p6). ... For atoms or ions that are isoelectronic, the number of protons determines the size.

Answer 2

Answer:

F– and O–2 is right answer