Aluminum ,thallium, Chemistry

Assignment Help:

 

GROUP 13: ALUMINUM TO THALLIUM

The substance aluminum, indium, gallium and thallium have valence electron configurations (ns)2(np)1 and for the lighter elements their chemistry is dominated by the +3 oxidation state. The group trends are very different from those in groups 2 and 1. The Al3+ ion has a large radius ratio and is rigidly polarizing, so that significant deviations from simple ionic behavior are usually observed. The filling of the d shells (and 4f in period 6) goes to decreased electropositive character for Tl and Ga, In similar to that shown in group 12. There is also a progressive stabilization of lower oxidation states in lower side of the group.

Aluminum is common metallic element in the Earth's crust, being a constituent of almost all silicate minerals. Weathering leaves deposits of the very insoluble aluminum minerals Al(OH)3 and AlO(OH), known together as bauxite, which forms the principal source of the element. The metal is produce by electrolysis of fused cryolite Na3[AlF6]. Although reactive when clean, the metal easily builds a very resistant oxide film, which performs widespread applications as a lightweight construction material and in other vessels and cooking.

 

 

1937_Untitled.png

 

 

In, Ga and Tl are much less common substance, collect in small amounts from sulfide minerals of other elements and used only in specialized applications. The metals are less performing than aluminum in which the much bigger negative slope (negative electrode potential of Al is apparent. Thallium elements are extremely toxic but do not usually pose an environmental hazard because they are little used.

 


Related Discussions:- Aluminum ,thallium

What is half life of reaction and how it can calculated? , Half life of rea...

Half life of reaction refers to as the time during which the concentration of the reactants is reduced to half of the initial concentration or it is the time essential for the comp

Explain meso stereoisomer, Explain meso stereoisomer a) For a molecule ...

Explain meso stereoisomer a) For a molecule to have a meso stereoisomer, it must have more than single asymmetric atom, and it must be divisible into constitutionally identical

Properties of resorcinol - hydrocarbon, Properties of Resorcinol 1. Res...

Properties of Resorcinol 1. Resorcinol is a colourless crystalline solid, melting points 110°C. 2. Resorcinol is affected on exposure by light and air. 3. Resorcinol is s

Determing most ionic boonds, Normal 0 false false false ...

Normal 0 false false false EN-IN X-NONE X-NONE

Define structure of cis-1-3-dimethylcyclohexane, The two chair conformation...

The two chair conformations of cis-1,3-dimethylcyclohexane

Atomic absorption spectrophotometry, Atomic absorption spectrophotometry: ...

Atomic absorption spectrophotometry: Atomic absorption spectrophotometry (AAS) concerns the absorption of radiation by the atomised analyte element in the ground state. The at

Explain Chemical properties of f-block element, Q. Chemical Properties of f...

Q. Chemical Properties of f-block element? The lanthanides are silvery-white, highly electropositive and reactive metals. They all react slowly with cold water and quickly on h

Wavelength of a spectral line for an electronic transition, The wavelength ...

The wavelength of a spectral line for an electronic transition is inversely related to: (1) The number of electrons undergoing the transition (2) The nuclear charge of the a

Brief meaning of water of crystallization , In crystallography, water of cr...

In crystallography, water of crystallization or water of hydration or crystallization water is water that occurs in crystals. Water of crystallization is essential for the maintena

#title.REACTIONA KINETICS, HOW MANY HALF LIVES ARE REQUIRED FOR THE CONCENT...

HOW MANY HALF LIVES ARE REQUIRED FOR THE CONCENTRATION OF REACTANT TO DECREASE BY 1.56 PERCENT OF ITS ORIGINAL VALUE

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd