Group 2A metals tend to be somewhat less reactive than alkali metals,and the order of their reactivity is
A)Ba Sr Ca Mg Be.
B)Be Mg Ca Sr Ba.
C)Ca Mg Be Ba Sr.
D)Sr Ca Mg Be Ba.

Question

Group 2A metals tend to be somewhat less reactive than alkali metals,and the order of their reactivity is
A)Ba > Sr > Ca > Mg > Be.
B)Be > Mg > Ca > Sr > Ba.
C)Ca > Mg > Be > Ba > Sr.
D)Sr > Ca > Mg > Be > Ba.

Quizplus · Accepted Answer

The reactivity of Group 2A metals (alkaline earth metals) increases down the group due to the decrease in ionization energy. This makes barium (Ba) the most reactive and beryllium (Be) the least reactive in the group, following the order Ba > Sr > Ca > Mg > Be.

Group 2A Metals Tend to Be Somewhat Less Reactive Than