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 ...

Rubidium is an alkali metal in group IA of the periodic table with atomic number 37 ... The electronic configuration of Rubidium is (Kr)(5s 1). Its atomic radius is 0.248 nm and the (+1) ionic radius ...