Question
Chemistry Question on Alkanes
The alkali metal with the lowest E M- M+ (V) is X and the alkali metal with highest E M- M+ is Y. Then X and Y are respectively:
A
Li, Na
B
Li,Cs
C
Na,Li
D
Cs,Li
Answer
Li, Na
Explanation
Solution
The correct option is: (A): Li, Na. The alkali metal with the lowest ionization energy (E M- M+ or electron affinity for metal cations) is represented by X, and the alkali metal with the highest ionization energy is represented by Y. The given answer is Li (lithium) for X and Na (sodium) for Y.