GROUP VIIB

The only metal of pharmaceutical
importance in this group is

product of radioactive decay

extremely rare although fair
amount of knowledge is available concerning
on its properties.

A chemical element with the symbol Mn and
atomic number 25.

Manganese occurs mostly as the

manganese is used mainly in

a silvery-gray metal that resembles iron. It is hard and
very brittle, difficult to fuse.

Manganese exhibits oxidation states of

The 2+ of manganese compounds are

The permanganese ion (Mno4¯) is a

Is a complex oxide of manganese containing both
di- and tri- valent manganese

is a silicate mineral containing both di- and tri-
valent manganese

salmon or flesh colored ppt of MnS

purple solution of HMnO4 (permanganic acid)

Salmon-colored sulfur
- Trace element

Cofactor in CHON synthesis for riboflavin
- Phosphorylation, fatty acid and cholesterol synthesis

Manganese sulfide poisoning

Mineral chameleon
- Oxidizing agents, volumetric soln in permanganometry

Technetium is also known as

1st element produced artificially
- Used in preparation of radiopharmaceuticals
- Diagnostic agent