Unit-4- TRANSITION AND INNER TRANSITION ELEMENTS Choose the best answer: 1. almost same ionic radii. In Chemical Reactions Involving Transition and Inner‐Transition Metals. Ans. Another way to categorize the elements of the periodic table is shown in Figure \(\PageIndex{3}\). Inorganic Reactions and Methods: Formation of the Bond to the Transition and Inner‐Transition Metals, Volume 14 Unit 8 The d- and f- Block Elements I. Answer the following questions. Give the group number for each. They are also called the representative elements. List the properties of metals, metalloids and nonmetals. Other oxidation numbers are possible Book Editor(s): ... View Enhanced PDF Access article on Wiley Online Library (HTML view) Download PDF for offline viewing. Q.3. Within the B group transition elements are two horizontal series of elements called inner transition elements. Chapter Two Main group elements Transition and Inner metals Groups-I 18 " Z 1314151617 Period:D D. l Nyt Electron Configuration Rules: I. Aufbau principle Electrons ordinarily occupy orbitals of the lowest energy audible (ground state)-when electrons occupy any other orbital (excited state)-energy order: Is,2sg2p, 3. s,3p, 45,3dg Up etc 2. Similar to all metals the transition metals are good conductors of heat and electricity. Representative, Transition and Inner-transition. The periodic table of elements is composed of metals, nonmetals, and metalloids.Chemical elements are categorized as metals if they have metallic properties such as malleability, good electrical conductivity, easily remove electrons, etc. Because in one of its oxidation state it has partly filled d orbital. alkali metals, the alkaline earth metals, and aluminum form a group of typical metals. 2. J. T. Mague. b) in case of Sc, 3d … Search for more papers by this author. Poor shielding effect of f-orbital electrons. 5. Lanthanide and actinide elements compose another type of transition series, in which adjacent elements have very similar properties. • Inner transition metals. Sc( Z=21) is a transition element but Zinc (z=30) is not because a) both Sc 3+ and Zn 2+ ions are colourless and form white compounds. Q.5. names transition metals and inner transition metals are often used to refer to the elements of d-and f-blocks respectively. Q.4. 6. The elements in the ten B groups are known as the transition elements. 3. Q.2. Each question carries one mark 1.Define transition elements. Search for more papers by this author. The other groups are: the less typical metals, the vertical transition metals, the horizontal All the transition elements are metals. Unlike the metals of Group-1 and group-2, all the transition metals except group 11 elements are hard. (In older periodic tables, Roman numerals are used to number the A and B groups.) Identify alkali metals, alkaline earth metals, halogens and noble gases. Transition element is defined as the one which has incompletely filled d orbitals in its ground state or in any one of its oxidation states. The first two columns on the left and the last six columns on the right are called the main group or representative elements. There are mainly four series of the transition metals, 3d series (Sc to Zn), 4d series (Y to Cd), 5d series (La and Hf to Hg) and 6d series which has Ac and elements from Rf to Cn. J. T. Mague. Main Difference – Transition Metals vs Inner Transition Metals. In transition elements electron enter into penultimate shell and in inner transition elements electron enter into antepenultimate shell. The oxidation number + 3 is common to all lanthanides and actinides in their compounds. Short answer type questions:- Ans. 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