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, an atomic weight of 85.47, and a density of 1.53 Mg/m 3. Its melting point is 38.9 C, and it boils at 688 C. The ...
Palladium is a metal in group VIII of the periodic table with atomic number 46, an atomic weight of 106.4, and a density of 12 Mg/m 3. Its melting point is 1552 C, and it boils at 3980 C. The ...