The lanthanide contraction explains which of the following periodic trends? The atomic ratio of the transition metals first decrease and then increase when moving horizontally across each period. When forming ions the transition metals lose their valence s orbitals before their valence d orbitals. The radii of the period 5 transition metals are very similar to the radii of the period 6 transition metals.

Q: Explain reaction chemistry of CO with transition metals based on its Molecular orbital diagram?

A: Solution: Simply for any ligand to bind with transition metal required lone pair.  Let us know the…

Q: Lanthanide contraction caused the similarities of the radius of the 4d and 5d metals and is…

A: Answer: Shielding of valence electrons from the Nucleus by the electrons present in the inner energy…

Q: out of Sc^3+ ,  Ti^3+ , Mn^2+ , Fe^2+ which one is colourless in aqueous solution ?

A: The electronic configurations of the given ions are

Q: Which of the following statements is false? * 2nd and 3rd row d metals are generally larger in size…

A: Half filled and fully filled configuration are more stable than normal.

Q: Which of the following statements is true about hydride ions or compounds?   Among second-row…

A: Answer

Q: For each of the following ions, draw diagrams like thosein Figure 8.18 to show orbital occupancies…

A: As you have posted multiple parts of the question, hence we are solving only first 3 parts of the…

Q: What are the three ingredients used in a blast furnace to make iron? Which one of these is the…

A:

Q: Which first-row transition metal(s) has the following highest possible oxidation state?a. +3 b. +7…

A: a) The first-row transition metals that have +3 as the highest possible oxidation state are as…

Q: What type of isomerism is shown by [CO(NH3)5ONO]Cl2? (ii) On the basis of crystal field theory,…

A: Coordination compounds exhibit structural isomerism as well as stereoisomerism Given compound is…

Q: What are the charge and coordination number of the central metal ion(s) in each compound of Give…

A: Coordination complexes are assigned the names according to the set of rules assigned in the…

Q: What is the d-electron count and number of unpaired electrons for the metal ion Cr3+? a. d1, 1…

A: The metal containing d electrons removes the electrons from d orbital to show the Cationic character…

Q: Transition metals have a tendency to form complex compounds, interstitial compounds and alloys.

A: ANSWER

Q: What does the following equation represent? 14FE3+ + FeS2 (s) + 8H20 = 15FE2+ + 2S042 + 16H*…

A: The balanced reaction given is,

Q: How would you account for the following? (i) The atomic radii of the metals of the third (5d) series…

A: (i) Due to the poor shielding effect of f-electrons, there would be lanthanide contraction.…

Q: What differences can be found between zinc and magnesium in regards to electron orbitals?   Do…

A: Electronic configuration of different elements are different from each other. For example magnesium…

Q: For each metal complex, give the coordination number for the metal species. M(CO), F.]: Na…

A: The coordination number of a central atom in a molecule or crystal is the number of atoms, molecules…

Q: Which of the following elements is most likely to form an oxide with the formula MO3: Zr, Nb, or Mo?

A:

Q: When orange solution containing Cr2O72–ion is treated with an alkali, a yellow solution is formed…

A: Given,Orange solution containing Cr2O72–ion is treated with an alkali, a yellow solution is formed…

Q: Predict the products of each of the following reactions and then balance the chemical equations.(a)…

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

Q: [Co(en)3][Cr(ox)3] and [Cr(en)3][Co(ox)3] are examples of_ а. ionization isomers b. linkage isomers…

A:

Q: Which of the following statements best explains why the titanium complex, [Ti(H₂O)6]4+, is…

A: Given : We have to explain why [Ti(H2O)6]4+ is colorless.

Q: Why dp transition elements show variable oxidation states? In 3d series (Sc to Zn), which element…

A: Outer electronic configuration and Oxidation states  Sc  3d1 4s2                                + 2,…

Q: Which of the following atoms is the most active metal? All can be found in the 5th row. Rb -…

A: Active metal - element easily donate electron and highly reactive

Q: Which iron species will have the greatest propensity to bond to carbon monoxide (remember CO binds…

A: Transition metals can form coordination complexes with carbon monoxide ligands using synergistic pi…

Q: What ions are present in solution? Write a balanced equation for the reaction of K(s) with H2O(1).…

A: Chemical equation is the equation in which the chemical reaction is represented. All the reactant…

Q: Consider the [V"(H20)6]²* ion. (i) Draw the d electron configuration for this ion on an orbital…

A: 1. The atomic number of V = 23. So, the electronic configuration = 3d34s2. 2. The metal ion, V2+ is…

Q: Magnitite ( Fe3O4) is a naturally occurring ferrimagnetic  material  with an inverse spinel…

A: Compounds with normal spinel structure are ZnFe2O4, MgAl2O4, CoAl2O4 where A atoms occupy the…

Q: 2. Which one of the following classifications is correct and most specific? Select one: O a. Sn, Pb,…

A: Since you have posted multiple questions, we will solve only first question for you. If you want the…

Q: Question is attached

A:

Q: Why do transition elements show variable oxidation states? How is the variability in oxidation…

A: The transition elements have the incompletely filled d-orbitals and furnish the cation by the…

Q: Give the ratio of tetrahedral sites to oxygen in tetrahedral coordination. • Alkali feldspar •…

A:

Q: Is the chromate ion or dichromate ion more stable in an acidic solution? Which ion has a higher Cr:O…

A: A species gains or loses electrons to form anions or cations respectively. A gain in electron is…

Q: Draw orbital-energy splitting diagrams and use the spectro-chemical series to show the orbital…

A: Spectrochemical series:- The arrangement of ligand in increasing order of their crystal field…

Q: Which is more acidic and why?  [Fe(H2O)6]2+ or [Fe(NH3)(H2O)5]2+

A: Acidity: It basically describes the how much amount of acid present in given compound. Acid: Species…

Q: Which of the following transition metals would be expected to have the smallest atomic radius? A)…

A: We know that, As we move from left to right in 4d series, then size decreases to 4d5 tgen after…

Q: <p>Explain why transition metals exhibit multiple oxidation states instead of a single…

A: Unlike main-group metals that tend to exhibit only one oxidation state, the transition metals often…

Q: What is the coordination number on the transition metal in the following compound? [Mn(H,O) ](NO3)2…

A: Answer

Q: How would you account for the following?(i) Many of the transition elements are known to form…

A: The explanation of the subparts is given in the following steps.

Q: In large atoms, the lanthanide contraction is characterized by stabilization of the s and p orbitals…

A: Large atoms like Tl, Pb, Bi, Hf, Ta etc. Lanthanide contraction is observed.  These contains filled…

Q: What is the process of making chlorine from the electrolysis of sodium chloride called? chlor-alkali…

A: (1) When sodium chloride is electrolysed , then sodium chloride decomposed with water to give sodium…

Q: 8. What is the oxidation state of the vanadium atom in V02+ (aq)? (a) -2 (b) 0 (c) +2 (d) +4

A: Oxidation is the process that involved the loss of electrons and oxidized to cation whereas…

Q: Identify which geometric isomer of [Pt(NH3)2Cl2] as shown. Draw the other geometric isomer and give…

A:

Q: Classify the metal centers in the following compounds in terms of their acidity, from hardest to…

A: Acids are defined as the species which can accept lone pairs from an electron rich species. The…

Q: What is the coordination number of the central ion? [Cr(H2O)6]+3 ? a. 3 O b. 6 с. 1 d. 2

A: Coordination number is the number of the ligands attached  to the central metal atom or ion . for…

Q: (a) What are the different oxidation states exhibited by the lanthanoids? (b) Write two…

A: (a) What are the different oxidation states exhibited by the lanthanoids? In the lanthanide series,…