by Sunday | Sep 13 | Chemistry JAMB
A. Na+ B. Mg²+ C. Si²+ D. O²+ Correct Answer: Option C – Si²+ Explanation Two or more ions are said to be isoelectronic if they have the same electronic structure and the same number of valence electrons. Na+ = 10 electrons = 2, 8 Mg²+ = 10 electrons = 2,8 O²− =...
by Sunday | Sep 13 | Chemistry JAMB
A. Ca²+ and Mg²+ B. K+ and Mg²+ C. Ca²+ and Li+ D. Ca²+ and Na+ Correct Answer: Option A – Ca²+ and Mg²+