This is not the document you are looking for? Use the search form below to find more!

Report home > Education

Transition Metal

0.00 (0 votes)
Document Description
In chemistry, the term transition metal (sometimes also called a transition element) has two possible meanings: The IUPAC definition states that a transition metal is "an element whose atom has an incomplete d sub-shell, or which can give rise to cations with an incomplete d sub-shell". Most scientists describe a "transition metal" as any element in the d-block of the periodic table, which includes groups 3 to 12 on the periodic table. All elements in the d-block are metals. In actual practice, the f-block is also included in the form of the lanthanide and actinide series.
File Details
  • Added: September, 26th 2012
  • Reads: 201
  • Downloads: 3
  • File size: 177.28kb
  • Pages: 4
  • Tags: enzyme kinetics, functions of carbohydrates, peptide bonds, primary structure of a protein, transition metal
  • content preview
Submitter
  • Username: site_circle
  • Name: site_circle
  • Documents: 35
Embed Code:

Add New Comment




Related Documents

Immobilization and stabilization of papain on chelating sepharose : a metal chelate regenerable carrier

by: shinta, 5 pages

A method for immobilization of papain has been selected based on the interaction between its histidine, cysteine and tryptophan residues with the immobilized metal ion (IMI) carrier ...

Market structure and economic transition in the Baltic Republics

by: shinta, 10 pages

Each of the four countries analyzed in this study has gone through a transition period since the fall of the Soviet Union in the early 1990’s. Each has tried different strategies to ...

Fitch Ratings Global Corporate Finance 1990–2005 Transition and Default Study

by: samanta, 19 pages

This study, updated through 2005, examines rating transition and default rates across Fitch’s global corporate rating universe both over the most recent year, 2005, and over the long term, ...

Thinking About Tomorrow The Transition to Adult Life

by: samanta, 16 pages

The period of time between high school and what comes next is not a transition. That sounds like something that gets you from one place to another—like a bridge. It even sounds easy. In my ...

Gas Metal Arc Welding of Stainless Steel

by: manualzon, 50 pages

ebook about welding fundamental specially for stainless steel material, with gmaw or gas metal art welding

Miller - Guidelines For Gas Metal Arc Welding (GMAW)

by: manualzon, 20 pages

Mechanical Engineers must have book, an ebook about gas metal arc welding gmaw in pdf file, learn welding how to with this very useful ebook

What Happens when the Technology Growth Trend Changes? : Transition Dynamics, Capital Growth and the "New Economy

by: samanta, 68 pages

The rapid increase in U.S. economic growth during the late 1990s inspired speculation that an acceleration in the rate of technological progress had given rise to an increase in potential output ...

The 'New Economy' and Economic Growth in Transition Economies

by: samanta, 25 pages

The contribution of the'new economy'to economic growth in developing countries has sofar been minimal. Despite the recent hype, the'old economy'will for long be the fundamental force behind economic ...

The Macroeconomic Transition to a Fossil-Fuel-Free Economy

by: samanta, 60 pages

In this paper I discuss causes and consequences of transition toward a fossil-fuel-free economy. In the long run, fossil fuel's finiteness will cause a rise in their prices and are expected to lead ...

Enerpat MSB-55 Metal Shredder

by: enerpat, 7 pages

MSB-55 Metal Shredder used for shred thickness 8 mm scrap metals, scrap aluminiums tin cans, steel roof, car plate, car name plate, oil painting drums, steel drums, scrap wires, wire rope and so on.

Content Preview
Transition Metal
Transition Metal
In chemistry, the term transition metal (sometimes also called a transition element) has two
possible meanings:
The IUPAC definition states that a transition metal is "an element whose atom has an
incomplete d sub-shel , or which can give rise to cations with an incomplete d sub-shel ".
Most scientists describe a "transition metal" as any element in the d-block of the periodic
table, which includes groups 3 to 12 on the periodic table. All elements in the d-block are
metals. In actual practice, the f-block is also included in the form of the lanthanide and actinide
series.
Transition Metals Definition
The elements belonging to 3 to 12 group, present in the center of the periodic table are called
as transition metals.
These are actually d- block metals and form a bridge in between the s and p block elements,
the metals and non metals.
Know More About :- Graphs of Functions


Math.Tutorvista.com
Page No. :- 1/4

The transition metals are unique among the chemical elements. The elements in which last
electron enters the d- sub shel of their penultimate shel (n-1 shell) are known as d- block
elements.
Thus, transition metals can be broadly defined as those which either as elements or as ions
have partial y fil ed d-subshell. Since d-subshell is partially filled, the elements are cal ed as d-
block elements.
The transition metals are classified into four transition series. Each series (Except 6d) consists
of 10 elements. (This is because the d- sub-shell can occupy only 10 electrons and they get
filled up when we move along a period in a series.)
Characteristics of Transition Metals
The transition metals properties are described as fol ows.
Transition elements have partly fil ed d- orbitals. These elements show several interesting
properties like variable oxidation state or variable valency, formation of colored complexes
and paramagnetic behaviors. These metals and their compounds also exhibit catalytic
properties.
Some of the important properties of transition metals are
1. Electronic Configuration
The electronic configurations of transition elements may in general be represented as
(n-1) d 1-10 ns1 or 2
The (n-1) means penultimate or next to the outermost shel and d- orbital may have 1 to 10
electrons and the s- orbital of the outermost shel (n) may have 1 or 2 electrons. The
electronic configurations of all the four series of elements are given in a table above.
Learn More :- Relative Standard Deviation


Math.Tutorvista.com
Page No. :- 2/4

2. Atomic and ionic radii
The atomic and ionic radi of the elements of a particular transition series decreases from left
to right.
In the first series, the atomic radii become almost constant for chromium, because of two
factors-Increase in nuclear charge and increase in the screening effect which just balance
each other.
Atomic radi of Chromium is - 117pm. Mn, the next element has an atomic radi of 117 pm. The
next three elements, Co, Ni and Cu has 116. 115 and 117 respectively.
To summarize, atomic and ionic radii decrease with increase in atomic number, due to
increase in nuclear charge.


Math.Tutorvista.com
Page No. :- 4/4

ThankYouForWatching
Presentation



Document Outline

  • ﾿

Download
Transition Metal

 

 

Your download will begin in a moment.
If it doesn't, click here to try again.

Share Transition Metal to:

Insert your wordpress URL:

example:

http://myblog.wordpress.com/
or
http://myblog.com/

Share Transition Metal as:

From:

To:

Share Transition Metal.

Enter two words as shown below. If you cannot read the words, click the refresh icon.

loading

Share Transition Metal as:

Copy html code above and paste to your web page.

loading