Yes, scandium is a pure element.
Scandium is an metallic element. Since it is an element is not made from anything else. Scandium can be found on earth, the sun and the stars. Pure scandium is obtained by electrolysis of molten scandium, lithium and potassium chlorides in a graphite crucible, with a wolfram wire with molten zinc as an electrode. As all other chemical elements scandium atom has a nucleus (containing protons and neutrons) and a cloud of electrons.
Scandium has the chemical symbol Sc and 21 is it's atomic number. A link is provided to the Wikipedia article on this (usually considered) rare earth element.
It is named after Scandinavia, a region in northern Europe where it was historically mined. It was identified as an element in 1879 when Lars Nilson isolated scandium oxide from euxenite and gadolinite ores. It was not until 1937 that it was isolated in pure metallic form.
Scandium is, itself, an element and so there are no elements of scandium.
Scandium is element 21, and terbium is element 65.
There is no sensible answer to the question because scandium IS a transition element.
The element scandium was named after the country Scandinavia.
Scandium is a natural chemical element.
Scandium is a period 4 element.
Scandium is a very rare and expensive element. Scandium, scandium alloys and scandium compounds has important applications in science and technology.
Scandium is a natural chemical element; minerals containing scandium: thortveitite, euxenite, gadolinite.
Scandium is an extremely rare and expensive element.