Zirconium

Zirconium or Zr

• atomic number is 40

• atomic weight is 91.224

• color is Silver

• state at 298.15°k is Solid

• classification is Metallic

• date of discovery is 1789

• density kg/m^3 is 6520

• melting point is 2125.15

• boiling point is 2022 K

• group is Transition Metal

• Number of neutron is 51