Question

Which of these elements is a metal?

Hafnium
Radon
Silicon
Sulfur
Selenium

Answer 1

Hafnium

Step-by-step explanation:

Hafnium is a chemical element with the symbol Hf and atomic number 72. A lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in many zirconium minerals

Answer 2

Selenium is a non metal, radon is a noble gas, silicon is a metalloid, and sulphur is a non metal. Hafnium is a transition metal.