The electronic configuration of magnesium is (Ne)(3s) 2, and the atomic radius is 0.16 nm. Magnesium has an hcp lattice with a = 0.321nm and c = 0.521 nm. The diagram shows a schematic unit cell.

It melts at 1410 C. The electronic configuration of the silicon atom is: (Ne)(3s) 2 (3p) 2, and the atomic radius is 0.132 nm. Silicon has the diamond cubic crystal structure with a lattice parameter ...

For comparison, the radius of a typical bacterium is 1 × 10-6 m and the radius of a human hair is about 1 × 10-4 m.

The periodic table’s arrangement also allows scientists to discern trends in element properties, including electronegativity, ionization energy, and atomic radius. Many scientists worked on the ...