### element | metal:

Tantalum
* are chemical elements
  - metallic elements
  - transition metal
* cost more than standard electrolytics, but they are smaller and generally higher quality.
* gray, heavy, and very hard metal
  - very hard metal, that is ductile and can be drawn into fine wires
* greyish silver, heavy, and very hard metal.
* has no biological role.
* is alloyed with steel to increase steel's ductility, strength and melting point.
* is completely immune to body liquids and nonirritating material
  - and nonirritating metal
  - considered to be non-toxic
  - extracted from the ore and serves as constituents of corrosion-resistant metal alloys
  - highly corrosion resistant due to the formation of an oxide film
  - immune to body liquids and non-irritating metal
  - one of the most corrosion resistant substances available
  - processed from a base ore called Coltan which used to have little value
  - quite soft compared to tungsten or even molybdenum
  - somewhat less effective than titanium as a getter
* is used in pen points, chemical equipment, weights, and vacuum furnace parts
  - the electronics industry for capacitors and high power resistors
  - to make alloys with high melting poits, high strength, and good ductility
* lustrous, hard, blue-gray transition metal.
* metal used to make capacitors, tiny electronic parts that hold an electrical charge.
* now sits below niobium in the periodic table.
* occurs in a variety of mineralized zones
  - nature with the element niobium in the minerals columbite and tantalite
  - principally in the mineral columbite-tantalite
* rare metallic element that occurs in nature with the element niobium.
* rare, shiny, gray, dense metal.
* shiny, grey, but ductile metal that resembles platinum
  - silvery metal which is soft when is pure
* strong, ductile metal that is nearly immune to chemical attack at room temperatures.
* very hard, malleable, ductile metal
  - silvery-gray metal
* white lustrous metal resembling platinum.

### element | metal:

Technetium
* also has numerous nuclear isomers , which are isotopes with one or more excited nucleons
  - superconducting properties
* are chemical elements
  - drugs
  - transition metal
* byproduct of the nuclear industry and product of uranium decay.
* corrosion-resistant metal.
* forms various sulfides.
  - stable isotopes
* is absorbed evenly
  - an element with no stable isotopes
  - located in the seventh group of the periodic table, between rhenium and manganese
  - placed between manganese and rhenium on the periodic table
  - radioactive and never occurs in nature
  - used for medical scintigraphic imaging
* is used in nuclear medicine for a wide variety of diagnostic tests
  - steel alloys
  - the steel industry because it remarkable corrosion inhibitor
* popular diagnostic tool in medicine.
* radioactive silver-gray metal.
* silvery-gray metal that tarnishes slowly in moist air.

### element | metal:

Terbium
* is also available in soluble forms including chlorides , nitrates and acetates
  - considered to be moderately toxic
  - malleable and ductile and can be cut with sharp objects
  - rare and expensive, so it has few commercial uses
  - reasonably stable in air
  - separated as a double salt with ammonium nitrate by crystallization
* is used in color TV tubes
  - green lasers
  - special lasers and as a dopant in solid-state devices
  - x-rays and in color televisions tubes
* member of the lanthanide or rare earth group of elements.
* silver gray rare earth metal that is both malleable and ductile.
* silver-gray metal, and is malleable, ductile, and soft enough to be cut with a knife.
* soft silvery-white metal.
* soft, malleable, ductile, silver-gray metal.