How does the atomic radius of the element change on going?
Also asked, how does atomic radius change in the periodic table?
Atomic radius decreases from left to right within a period. This is caused by the increase in the number of protons and electrons across a period. Atomic radius increases from top to bottom within a group. This is caused by electron shielding.
In respect to this, how do the atomic radii of elements change as we go from left to right in a period of the periodic table?
Atomic radii generally decrease as you go left to right across a period and increase as you go down a group on the periodic table. If you go down a group you are adding another principal quantum level and this increases the size of the atom.
Electronegativity increases as you move across the periodic table from left to right. This occurs due to a greater charge on the nucleus, causing the electron bonding pairs to be very attracted to atoms placed further right on the periodic table. Fluorine is the most electronegative element.