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 ...

Sodium is an alkali metal in group IA of the periodic table with atomic number 11 ... The electronic configuration of Sodium is (Ne)(3s 1). Its atomic radius is 0.190 nm and the (+1) ionic radius is 0 ...

Aluminum is a metal in group IIIA of the periodic table with atomic number 13 ... The electronic configuration of Aluminum is (Ne)(3s) 2 (3p) 1, and it has an atomic radius of 0.143 nm. At room ...