<scalardataType="xsd:string"dictRef="bo:nameOrigin"xml:lang="en">Greek 'protos' for 'ancester'. Protactinium is before Actinium in the periodic table.</scalar>
<scalardataType="xsd:string"dictRef="bo:nameOrigin"xml:lang="en">Greek 'protos' for 'ancester'. Protactinium is named in this way because Actinium is a product of decay radiation of Protactinium.</scalar>