'The name of this element, atomic number 27, can precede "blue" & "green"'
cobalt
THE ELEMENTS: The name of this element, atomic number 27, can precede blue & green
The name of this element, atomic number 27, can precede "blue" & "green"
The name of this element, atomic number 27, can precede "blue" & "green"
THE ELEMENTS
cobalt
THE ELEMENTS