Which one of the following trends occurs as one moves down the group 1A (1) elements from Li to Cs?
A)Metallic character decreases
B)Electronegativity increases
C)Melting point increases
D)First ionization energy increases
E)Chemical reactivity increases

Question

Quizplus · Accepted Answer

As one moves down Group 1A (1) elements from lithium (Li) to cesium (Cs), the atoms increase in size due to the addition of electron shells. This increase in size makes it easier for the atoms to lose their outermost electron, enhancing their chemical reactivity. Thus, chemical reactivity increases down the group.

Which One of the Following Trends Occurs as One Moves