Question

the metals of group 2 from tom top to bottom are Be Mg Ca Sr and Ba......which one of thes3 elements will form ions readily and why​

Answer 1

Barium will form ions most readily because Barium, whose chemical symbol is Ba, is one of the alkaline metals and we know that the chemical reactivity of metals increases as we move from top to bottom in a group.

Chemical reactivity is the tendency to of elements to form ions by gaining or losing the electrons from their valence or penultimate shell or energy level.

Answer 2

Here, metal characteristics increase from top to down in a group and effective nuclear charge DECREASES in the same manner.

Thus, the ability to lose electron increases from top to down in a group. So, Barium (Ba) will readily form ions.