The periodic table can be read across from left to the ... The table below shows the melting points of most elements in group 1. Melting points are a physical property of an element.

Chlorine is a halogen in group VII A of the periodic table with atomic number 17, an atomic weight of 35.45, and a density of 1.56 Mg/m 3. In the solid state it forms a tretragonal crystal with a ...