Why do the atoms in the top rows in the periodic table have higher electronegativity than atoms in lower rows?
the electrons of those atoms are farther from the nucleus.
the electrons of those atoms are closer to the nucleus.
the electrons of those atoms are part of the nucleus.
when there is unequal sharing between two atoms of the electrons in a bond, which type of bond is it?
polar covalent
electronegative
ionic
nonpolar covalent