Question

Metallic character increases from 1 to 2 , and from 3 to 4 with respect to the position of elements in the periodic table. Nonmetallic character increases from 5 to 6 and from 7 to 8 in the periodic table.

Answer 1

As the size of the atom increases due to increase in the number of shells the effect of nuclear charge is less, hence metallic character increases that is tendency in giving electrons increases from top to bottom as we move in a group and whereas in a period as proton number increases but no change in shells as we move from left to right size decreases hence metallic nature decreases in a period. Vice-versa for non-metallic.
Hence, answers to blanks are (1) top, (2) bottom, (3) right, (4) left, (5) bottom, (6) top, (7) left, (8) right.