Question: is isoelectronic with argon and is isoelectronic with neon?
Answer: 14. __________ is isoelectronic with argon and __________ is isoelectronic with neon. Explanation: The Cl- ion has 18 electrons and is isoelectronic with argon while the F- ion has 10 electrons making it isoelectronic with neon. ... Chlorine is much more apt to exist as an anion than is sodium.