Metallic character:
All transition elements are metals, as the number of electrons in the outermost shell is very small, being equivalent to 2. They show most of the properties of metals. They hold metallic lustre, high melting and boiling points, high density, malleability, ductility, high tensile strength, hardness, & brittleness, and so on. They are very good conductors of heat and electricity. They reveal all the three kinds of structures: face centred cubic (i.e., fee), hexagonal closed packed (i.e., hcp) and body centered cubic (i.e., bcc). Such properties reveal that both metallic and covalent bonding is present in the atoms of d-block elements.
The metallic bonding is due to tenure of one or two electrons in the outermost energy shell similar to alkali and alkaline earth metals and comparatively low ionization energies. Copper, silver and gold are exceptional in their thermal and electrical conductivities. The properties of rigidity and brittleness are related with covalent bonding. The existence of unpaired and unfilled d-orbitals favors covalent bonding. Bigger the number of unpaired d-electrons, bigger the number of covalent bonds and thus, greater is the strength of such bonds. Cr, Mo and W are very rigid metals as they have maximum number of unpaired d-orbitals whereas Zn, Cd and Hg are softer in nature since they do not have any unpaired d-orbitals.
Latest technology based Chemistry Online Tutoring Assistance
Tutors, at the www.tutorsglobe.com, take pledge to provide full satisfaction and assurance in D Block Elements homework help via online tutoring. Students are getting 100% satisfaction by online tutors across the globe. Here you can get homework help for D Block Elements, project ideas and tutorials. We provide email based D Block Elements homework help. You can join us to ask queries 24x7 with live, experienced and qualified online tutors specialized in D Block Elements. Through Online Tutoring, you would be able to complete your homework or assignments at your home. Tutors at the TutorsGlobe are committed to provide the best quality online tutoring assistance for Inorganic-Chemistry Homework Help and assignment help services. They use their experience, as they have solved thousands of the Chemistry assignments, which may help you to solve your complex issues of D Block Elements. TutorsGlobe assure for the best quality compliance to your homework. Compromise with quality is not in our dictionary. If we feel that we are not able to provide the homework help as per the deadline or given instruction by the student, we refund the money of the student without any delay.
tutorsglobe offers you accounting assistance in classroom assignments, homework help, textbooks solutions, accounting course help, online tutoring, and problems solutions, accounting tutors are available for help 24x7.
elastic properties of solids tutorial all along with the key concepts of concept of elasticity, statement of hooke's law, verification of hooke's law, young's modulus of elasticity and elastic potential energy
www.tutorsglobe.com offers tools of structured analysis homework help, assignment help, case study, writing homework help, online tutoring assistance by computer science tutors.
tutorsglobe.com hypoglycemia assignment help-homework help by online insulin tutors
Concept of communities and community interactions tutorial all along with the key concepts of concept of Communities, Coevolution of species within Communities, Types of Communities, Terrestrial Communities, Freshwater Communities, structure of Communities
Reactions of Aldehydes and Ketones tutorial all along with the key concepts of Carbonyl Carbon consists of a nucleophilic site, Nucleophilic Addition, Condensation Reaction, Reactions of Aldehydes and Ketones, Cannizzaro Reaction, Uses of Aldehydes and Ketones
tutorsglobe.com biological significance of osmosis assignment help-homework help by online osmosis tutors
Succession in Ecosystems tutorial all along with the key concepts of Ecological Succession, Primary Succession, Secondary Succession and Human Influence on Succession
tutorsglobe.com re-absorption in proximal convoluted tubule assignment help-homework help by online excretion tutors
Preparation and function of the Cell tutorial all along with the key concepts of Observing Living Tissue, Preparation of Dead Tissue, Light Microscopy, Electron Microscopy, Examination and Interpretation of sections, Histological Stains and Histochemistry
theory and lecture notes of construction and mechanism of operation all along with the key concepts of construction of bjt, operation of n-p-n bjt, current components, minority carrier profile and notation to an n-p-n bjt. tutorsglobe offers homework help, assignment help and tutor’s assistance on construction and mechanism of operation.
Interactions in an Ecosystem tutorial all along with the key concepts of Competition, Predation, Parasitism, Symbiosis, Commensalism and Saprophytism
tutorsglobe.com improved resistance to inspect microbial diseases assignment help-homework help by online transgenic plants tutors
Theory and lecture notes of Market Structure and Game Theory all along with the key concepts of market structure, Game Theory, Foundations and Principles of game theory, Static Games of Complete Information. Tutorsglobe offers homework help, assignment help and tutor’s assistance on Market Structure.
chemistry of alkanes and alkynes tutorial all along with the key concepts of sources of alkenes and alkynes, laboratory preparation of ethene and ethyne, isomerism in alkenes, test for unsaturation
1952493
Questions Asked
3689
Tutors
1487737
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!