Q26 of 31 Page 198

Collect information regarding metallic character of elements of 1A group and prepare report to support the idea of metallic character increases in a group as we move from top to bottom.

i. As the elements of IA have low ionization energies, these metals have great tendency to lose their outermost electron and thus change into positive ions (cations).


ii. These elements are therefore said to have strong electropositive character.


iii. As ionization energy decreases on moving down the group, the electropositive character increases on moving down the group from lithium to caesium.


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