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 ...

The covalent radius (a measure of how large individual atoms are) shows different trends if you are moving across a period or down a group. A comparison of the relative covalent radii of atoms is ...

This page uses out understanding of the atomic model and the periodic table to explore the following observations: Character conversation: two pupils discussing PCl5 breaking the octet rule. They alos ...

Titanium is a metal in group IVB of the periodic table with atomic number 22, an atomic weight of 47.90, a density of 4.54 Mg/m 3, and a melting point of 1670 C. The electronic configuration of ...

Using lasers beams to measure the nuclear radius of isotopes at the end ... Nobelium is a synthetic chemical element with the atomic number of 102. The element was first synthesized by a team ...