To derive is defined as to come from, be created from or be developed out of something else. An example of derive is when you get the idea for a new fund raising event based on the event the previous year.
Rubidium: geological information. Rubidium is far too reactive to be found as the free metal in nature. It is relatively rare, although it is the 16th most abundant element in the earth's crust. Rubidium is present in some minerals found in North America, South Africa, Russia, and Canada. It is found in some potassium minerals (lepidolites, biotites, feldspar, carnallite), sometimes with caesium as well.
Sodium is commonly found in stars. It is the most abundant alkali metal in our world's crust, taking up about Â¼ of the total crust. Sodium fluoroacetate can easily be found in many plants across Brazil, Africa, and Australia. It was established as the poisonous substance of the leaves of Dichapentalum cymosum.odium is commonly found in stars. It is the most abundant alkali metal in our world's crust, taking up about Â¼ of the total crust. Sodium fluoroacetate can easily be found in many plants across Brazil, Africa, and Australia. It was established as the poisonous substance of the leaves of Dichapentalum cymosum.