Which d-block element in the periodic table is represented by the Greek symbol alpha and the metallic 'cays"?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Actinium.
The d-block element represented by the Greek symbol alpha (α) and the metallic "rays" is Actinium (Ac). Its name is derived from the Greek word "aktinos," meaning ray or beam, due to its strong radioactivity and emission of alpha particles (α-rays). Actinium is a silvery-white, radioactive metal belonging to Group 3 of the d-block and is the first element of the actinide series.