Question

...........how does electronagitivity vary in a period and in a group??.............

Answer 1

in a period electronegativity goes on increasing while in that of group the electronegativity goes on decreasing

Answer 2

The positively charged protons in the nucleus attract the negatively charged electrons. As the number of protons in the nucleus increases, the electronegativity or attraction will increase. Therefore electronegativity increases from left to right in a row in the periodic table.

Moving down in a group, the electronegativity decreases due to the longer distance between the nucleus and the valence electron shell, thereby decreasing the attraction, making the atom have less of an attraction for electrons or protons.

MARK BRAINLIEST...