Technetium

=﻿ Technetium ﻿ = (Caitlin Sayer) Symbol: Tc Atomic Number: 43 Atomic Mass: 98  # of Protons: 43   # of Neutrons: 55   # of Electrons: 43   Melting Point: 2200 °C   Boiling Point: 4877 °C   Normal Phase: Solid   Cost: $60 per gram   Classification: Transitional Metal   Origin of Name: Greek: teknetos (which means artificial)   Discovered By: Carlo Perrier and Emilio Segre in 1937   Technetium belongs to the Manganese family. __** Interesting Info **__ 1. Technetium is the first synthetically produced element. 2. All of Technetium's isotopes are radioactive. 3. Technetium is used for radioactive tracing in medicine and preventing rust. 4. Technetium's crystal shape is a hexagon. 5. Technetium is ductile, malleable, and is able to conduct electricity and heat. LINK: [|Facts About the Elements]