Picometre is part of million of the million part of acentimetre

In same group , By increasing the atomic number, the atomic size .......

Atomic size of 17Cl if greater than 12Mg

In periods, by increasing the atomic number , the atomic size decreases.

In group atomic size increases as we go from bottom to top

The smallest atomic sized element is located at the ....... of periodic table. while the largest atomic size is located at the ..... of the periodic table