Question

Elements has maximum tendency of electron lossing would be?
Be.
B
Mg
Rb

My ans. is Be
But correct is Rb. How???

Answer 1

Answer:

Of the main group elements, fluorine has the highest electronegativity (EN = 4.0) and cesium the lowest (EN = 0.79). This indicates that fluorine has a high tendency to gain electrons from other elements with lower electronegativities. We can use these values to predict what happens when certain elements combine