Which is the soft, malleable and silvery-yellow metal with atomic number 59 in the lanthanide series?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Praseodymium.
Praseodymium is indeed a soft, malleable, and silvery-yellow metal, holding atomic number 59 within the lanthanide series. It's a rare earth element, known for its paramagnetic properties. Praseodymium reacts slowly with air, forming a green oxide layer. It's used in alloys, notably in high-strength magnets and carbon arc lights.