The periodic table is a chart that shows how elements are related to one another. Indium is a transition metal that is also part of the platinum family. The metals in the platinum family are also known as the noble metals. They have this name because they do not react well with other elements and compounds. They appear to be too superior to react with most other substances. In fact, iridium is the most corrosion-resistant metal known.
Precipitation falls as snow when the air temperature is below 2 Â°C. It is a myth that it needs to be below zero to snow. In fact, in this country, the heaviest snow falls tend to occur when the air temperature is between zero and 2 Â°C.
When the air just below the cloud is cold enough that the crystals don't melt (about 30 or 31), they will reach the surface of the earth as snowflakes. When the ground is warm and the snow that touches it melts, the melting snow cools the earth and makes it possible for more falling snow to accumulate. Freezing rain falls when snow melts after dropping from a cloud and encountering warmer air. 2  Although the rain super-cools on its way down, it doesn't become ice until it touches the ground or whatever else is in its way. 3  When this cold rain falls on a frozen surface, it freezes into a solid coat or glaze of ice.