Periodic Table of WIS

Technetium Tc

 

Where is technetium used--or where does it impact our everyday lives?

 

 

Technetium    Symbol: Tc

Atomic number: 43   Atomic mass: 98

At room temperature: Solid

Where on Periodic Table: Group 7 Period 5  a d-block element

Melting Point: 2157 °C (3914.6 oF)
Boiling point   4265 °C (7709 oF)
Density:  11.5  g/mL
Reaction with air (O2):   It tarnishes only very slowly in moist air

When heated with oxygen the result is technetium (VII) oxide, (Tc2O7)

Reaction/solubility in water:  Technetium does not react with water under normal conditions.
Other:

This element, found in several different types of stars, is extremely rare.

Technetium serves a key role in nuclear medicine.
The word technetium comes from the Greek technetos, artificial.

Source: LANL.gov

Resarcher: Angela C

 

 

 

Here is a picture of the machine used for bone scans to detect fractures, tumors etc, using an isotope of technetium, Tc, (technetium-99) which is injected into the blood as a clear liquid containing phosphorus for bone cell uptake - with 2 gamma cameras 

WIS Photographer Bio teacher, Ms. B