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4 Which pair of ions is isoelectronic? A Ca2+ and 02- B Na+ and 02- OC Lit and Cl- OD Mg2+ and CI-
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4 Which pair of ions is isoelectronic?

A Ca2+ and 02-
B Na+ and 02-
OC Lit and Cl-
OD Mg2+ and CI-

User ThijsW
by
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1 Answer

7 votes

Answer:

B. Na+ and O2-

Step-by-step explanation:

Na+ plus has 10 electrons and O2- also has 10 electrons

User Davidahines
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