Zirconium

Symbol-Zr Atomic Number-40 Atomic Mass-91 Melting point-1852 Boiling Point-4377 Normal Phase-Solid cost= for classification-Metal Belongs to the Transition metal family Origin of name-Zircon,'zarkun' meaning gold like Discovered by Martin heinrich Klaproth in 1789
 * 1) of protons-40
 * 2) of neutions-51
 * 3) of elements-40