Briefly state the main differences between the following: 1.Microscopic structure and macroscopic structure. 2.Primary bonding and Van der Waals bonding.

Q: Please do short explaination the Lanthanide Contraction phenomena along with the example

A: Lanthanide contraction has to be explained.

Q: Consider the statements below, discuss / explain each one from them. If they are false / incomplete,…

A: Minerals are solid substances that are present in nature and can be made of one element or more…

Q: (a) If the effective mass of the electron is 0.17 me and the dielectric constant of Ge is 16, find…

A: We have to find radius of the first Bohr orbit of the electron.

Q: Determine the expected crystal structure including the ion positions of the hypothetical salt AB2,…

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Q: On descending the group, the enthalpy of formation becomes less negative for the fluorides but more…

A: Enthalpy of formation is defined as the energy required to form compounds from their respective…

Q: for what purpose electrometallurgy is used for?

A: Electrometallurgy involves electrolysis of elements.  Reactive metals such as aluminium and metals…

Q: On heating a crystal of KC1 in potassium vapour, the crystal starts exhibitinga violet colour. What…

A: F-centres are the anion vacancies engaged by free electrons as in alkali metal halides.

Q: Below are two views of an A,By compound crystallizing in a hexagonal-close packing (hcp) array of B.…

A: The contribution of an atom at the corner is 1/6 in HCP, whereas that of the face-centered atom is…

Q: ive short answers to the following. a. What is the correlation of ionization potential and atomic…

A: a. As we move from left to right atomic number increases because electron getting added but…

Q: Discuss how the concept of reciprocal lattice helps in the Ewald construction and determination of…

A: The arrangement of atoms/ions that constitute the crystal in the three-dimensional pattern furnishes…

Q: b) Predict the type of interference caused by the formation of metal ion-anion compounds which are…

A: b) The type of interference which is caused by the formation of metal ion-anion compound which are…

Q: Although the outermost electronic configuration of transition elements is ns1 or ns2 like alkali and…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: calculate the linear electron density of gallium arsenide in with is 10 nm the sub band values of…

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Q: 3.4. Propose three alkoxides, which should be as different in structure as possible, that you would…

A: Given structure  CpFe(CO)2(OR)  We need to explain whether CpFe(CO)2(OR)) is linear or bent at O.

Q: Assign suitable reasons for the following: (a) The Mn2+ compounds are more stable than Fe2+ towards…

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Q: Previous records had shown that to prevent acute toxicity to organisms, the maximum mass of CdSO4…

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Q: Explain the following observations: (i) + 3 oxidation state becomes more and more stable from As to…

A: (i) The stability of higher oxidation state decreases down the group. The elements As, Sb and Bi…

Q: 2. Unlike fluorides, pure oxides with the fluorite structure (MO2) show high anion conduction only…

A: Crystal defect: During crystallization of substances some of the impurities can be seen in…

Q: State the classification of silicates according to the mineral’s structures from island silicate to…

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Q: (a) Write the principle of method used for the refining of germanium.(b) Out of PbS and PbCO3 (ores…

A: a) The principle method that is used in the refining of germanium is a zone refining process, and…

Q: Explain the following observations giving appropriate reasons: (i) The stability of +5 oxidation…

A: The oxidation state denotes the number of electrons liberated/accepted from a neutral atom. The…

Q: 1. What are the practical implications of alloying in carbon and alloy steels?

A: “Since there are multiple questions and it is not mentioned that which one has to be solved so I am…

Q: Solid CuI2 is unstable relative to CuI at room temperature, but CuBr2, CuCl2, and CuF2 are all…

A: Born haber cycle for CuI.CuI→Cus+12I2g         ∆E1Cus →Cug…

Q: Write a short note on the stability of bicarbonates and carbonates of alkali metals

A: As we are moving from Li to Cs from top to bottom of the periodic table thermal stability of…

Q: Two solids are shown below. One is a semiconductor andone is an insulator. Which one is which?…

A: Since in insulators, the gap between the conduction band and valence band is very high. Hence there…

Q: A brief description of the range of silicate ions that can be form given in giligot ure

A: This is a multiple questions .According to Guidelines, in multiple questions, we can solve only the…

Q: Nickel and copper ores are generally sulfides, whereasaluminum ore is an oxide. Explain this…

A: An acid can be defined as a species that can accept electrons whereas a base can be defined as a…

Q: a) : Draw Iron Iron-Carbide diagram and explain its each phase reactions. (b) : Define the following…

A: The carbon in iron is an interstatial impurity. The alloy may form a face centre cubic (FCC) lattice…

Q: Magnesium hydride possesses a rutile lattice. (a) Sketch a unit cell of rutile. (b) What are the…

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Q: The position of the halogens (X) in the periodic table implies that the chemi group is dominated by…

A: Halogens belong to group VIIA of the periodic table. The general electronic configuration of…

Q: Geosciences are very versatile. This fact rests or the finding that the number of silicate minerals…

A: a) The step by step reaction sequence from silicic acid to tricyclosilicate is shown below-

Q: Explain the separation of Fe2O3 from bauxite with equations

A: Bauxite  is the ore of  aluminum (Al) in which  iron is present in the form of Fe2O3.  At first  ore…

Q: When aluminum replaces up to half of the silicon atomsin SiO2, a mineral class called feldspars…

A: The feldspar is a mixture of minerals of metals. The ratio of Al : Si is 0.5. So one Al ion per…

Q: 3. Sketch all the Bravais lattices, why is there no Face centered tetragonal while there is a base…

A: By knowing the smallest unit cell of the compound we can know about the packing of the solid and…

Q: Manganese silicide has the empirical formula MnSi andmelts at 1280 °C. It is insoluble in water but…

A: The atoms that exist in the metals are unique in common. For example, gold has only one kind of gold…

Q: a. How many types of metal bond theories are there? Explain all theories in detail. b. Compare the…

A: A) Metal bond theories - Valence bond theory Molecular orbital theory Crystal field theory…

Q: A sample of silicate weighing 0.5000 g is decomposed and subsequently yields a mixture of NaCl and…

A: Given data: Weight of sample of silicate = 0.500g. Weight of mixture of NaCl + KCl =0.1803g. Weight…

Q: wo researchers are to produce non-ferrous alloys materials. Researcher A is producing cast lloys…

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Q: Give the oxidation state of the metal for each of the following oxides of the first transition…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: H2 reacts with many s- and p-block elements forming metallic hydrides. On descending a group, the…

A: The question is based on periodic properties of elements. we have to identify the false statements.

Q: The U.S. Department of Energy has set the benchmark of 6% H by weight for an acceptable hydrogen…

A: given materials : NaAlH4, LiAlH4, LaNi5H6,  TiFeH2

Q: Question is attached

A: Unlike fluorides, pure oxides with fluorite structure show high anion conduction only at elevated…

Organometallic Compounds of s- and p- block elements

Organometallic compounds have a minimum of one bond between a metal compound and a carbon atom. Metalloid elements such as silicon, tin, and boron form organometallic compounds which can be utilized in a few commercial chemical reactions.