How do the following properties change in a group and period;1.metallic character 2.electronegativity3.atomic size4.electron gain enthelapy....

How do the following properties change in a group and period;1.metalli

1.	How do the following properties change in a group and period;1.metallic character 2.electronegativity3.atomic size4.electron gain enthelapy....
Answer» P (From TOP to BOTTOM ) (I) Metallic character "INCREASE"(II) Electronegativity "Decrease"(III) Atomic size "Increase"(IV) Electron GAIN enthalpy "Decrease"in period (From left to right )(I) metallic character "Decrease"(II) Electronegativity "Increase"(III) Atomic size " Decrease "(IV) Electron gain enthalpy "Increase"__________________________________