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D and f- block elements
- 1. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 Employee Opinion SurveyThe elements in which the last differentiating electron enters into the d-orbitals of the penultimate shell i.e., (n-1)d where n is the last shell are called d-block elements. DEFINITION
- 2. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 Employee Opinion Survey In d-block elements with increase in atomic number, the d-orbitals of the penultimate shell i.e. (n-1)d are gradually filled by electrons. The general electronic configuration of d-block element is, ELECTRONIC CONFIGURATIONS OF THE d- BLOCK ELEMENTS
- 3. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 Employee Opinion Survey Nearly all the transition elements display typical metallic properties such as high tensile strength, ductility, malleability, high thermal and electrical conductivity and metallic lustre PHYSICAL PROPERTIES
- 4. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 Employee Opinion Survey CHEMICAL PROPERTIES (1/8) ATOMIC RADII
- 5. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 Employee Opinion Survey The trend followed by the ionic radii is the same as that followed by atomic radii. Ionic radii of the transition metals are different in different oxidation states. CHEMICAL PROPERTIES (2/8) IONIC RADII
- 6. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 Employee Opinion Survey The ionisation enthalpy gradually increases with increase in atomic number along a given transition series though some irregularities are observed. CHEMICAL PROPERTIES (3/8) IONISATION ENTHALPIES
- 7. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 Employee Opinion Survey CHEMICAL PROPERTIES (4/8) OXIDATION STATES
- 8. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 Employee Opinion Survey CHEMICAL PROPERTIES (5/8) TRENDS IN THE M /M STANDARD ELECTRODE POTENTIALS 2+
- 9. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 Employee Opinion Survey CHEMICAL PROPERTIES (6/8) TRENDS IN THE M /M STANDARD ELECTRODE POTENTIALS 3+ 2+ The low value for Sc reflects the stability of Sc which has a noble gas configuration. The highest value for Zn is due to the removal of an electron from the stable d configuration of Zn . The comparatively high value for Mn shows that Mn (d ) is particularly stable, whereas comparatively low value for Fe shows the extra stability of Fe (d ). 10 2+ 2+ 5 3+ 3+ 5
- 10. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 CHEMICAL PROPERTIES (7/8) MAGNETIC PROPERTIES Magnetic moment is equal to the spin magnetic moment, is given by Maximun transition elements and compounds are paramagnetic due to presence of unpaired electrons.
- 11. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 CHEMICAL PROPERTIES (8/8) CATALYTIC PROPERTIES Most transition elements and their compounds have good catalytic properties.
- 12. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 COMPLEX FORMATION The transition metals form a large number of complex compounds. The transition metals form a large no. of interstitial compounds in which small atoms occupy the empty spaces in their lattices. Transition metals have similar atomic radii & other characteristics, hence they form alloys very readily.
- 13. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 OXIDES & OXOANIONS OF METALS Manganate ion Permanganate ion Chromate ion
- 14. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 THE f- BLOCK ELEMENTS The f-block consists of the two series, lanthanoids (the fourteen elements following lanthanum) and actinoids (the fourteen elements following actinium). The general electronic configuration of f- block elements is
- 15. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 THE LANTHANIDES These elements are classified by the filling up of the antipenultimate 4f energy levels.
- 16. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 THE LANTHANIDES ATOMIC AND IONIC SIZES
- 17. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 THE LANTHANIDES OXIDATION STATE
- 18. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 THE LANTHANIDES MAGNETIC BEHAVIOUR The magnetic moment is calculated by considering spin as well as orbital contribution, given by;
- 19. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 THE ACTINIDES OXIDATION STATE
- 20. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 THE ACTINIDES OXIDATION STATE
- 21. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 THE ACTINIDES ATOMIC RADIUS The radii of the atoms or ions of these metals decreases regularly across the series. The contraction is greater from element to element in this series due to poorer shielding by 5f electrons.
- 22. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - I N O R G A N I C - d - & f - B L O C K E L E M E N T S IIT JEE @studyduniya +91 7744994714 THE ACTINIDES MAGNETIC BEHAVIOUR Like, lanthanides, the Actinides elements are strongly paramagnetic, but the values of magnetic susceptibility are higher for the actinides than the Lanthanides.