How are the electron arrangements in a given group (vertical column) of the periodic table related? how is this relationship related to the properties of the elements in a given group?

In 2002, the rare earth elements mine in mountain pass, california was closed because

What is the chemical name of the compound na2co3? use the list of polyatomic ions and the periodic table to you answer. a. sodium carbon oxide b. sodium carbonate c. sodium(ll) carbonate d. sodium oxalate

Which three statements represent the benefits of performing experiments using computer simulations?