The atomic number of tellurium is 52 and the atomic number of iodine is 53, so these elements are in the correct order in the modern periodic table.
Lithium is an alkali metal in group IA of the periodic table with atomic number 3, an atomic weight of 6.939, and a density of 0.53 Mg/m 3. Its melting point is 180.5 C, and it boils at 1330 C. The ...