The table shows the melting points of five alkali metals. Use this information to describe how melting point changes in group 1.

Going down group 1, the melting point decreases. Lithium, Li Fizzes steadily; slowly becomes smaller until it disappears Sodium, Na Fizzes rapidly; melts to form a ball; quickly becomes smaller ...

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

Discover who created the periodic table of elements and how it works. Learn about Dmitri Mendeleev’s contributions, its ...

In this periodic table of elements quiz, you have 10 minutes to name as many elements as you can, given only their symbol, ...