Write the electron configuration for each of the following ions:(a) As3–(b) I–(c) Be2+(d) Cd2+(e) O2–(f) Ga3+(g) Li+(h) N3–(i) Sn2+(j) Co2+(k) Fe2+(l) As3+

Q: Which of the following is not isoelectronic with the rest? * O [PtCI,(n²-C,H,)I [(n²-C,H)Fe(CO). F O…

A: Complexes posses same number of electrons are known as isoelectronic species.

Q: Transition elements or their compounds have the following characteristics. 1. Some are paramagnetic…

A: Transition elements are those having partially filled d orbitals.

Q: Calculate the oxidation state of nickel in [Ni(CO)4]

A: ANSWER IS

Q: (ii) Arrange the group VII elements in order of increasing oxidizing strength. Explain the trend.…

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: Which oxide, CrO3 or CrO, is more acidic in water? Why?

A: To determine the nature of oxide whether it is acidic or basic, we have a general observation that…

Q: 1. Which of the following statements is correct? a. The transition metals have little variability in…

A: "Since you have asked multiple questions, we will solve the first question for you ( as per our…

Q: In which compound does Cr exhibit greater metallic behavior, CrF2 or CrF6? Explain

A: The oxidation number represents the number of electrons gain or loses by an element to become…

Q: What is a transition metal in the fourth period from the following list: N, Cu, Ag, Yb?

A: Transition metals are the elements that are placed in the d-block of the modern periodic table.…

Q: What happens when transition metals are oxidized?

A: What happens when transition metals are oxidized?

Q: How many unpaired d electrons does ion [Fe(CN)6]3— have when it has a low spin electron…

A:

Q: (a) Write the electronic configuration of Cu2+  (Atomic No of Cu=29) (b) Explain Cr has the…

A: (a) The electronic configuration of Cu2+  (Atomic No of Cu=29) Copper has  29 electrons filled in…

Q: Consider the following compound that obeys the 18-electron rule. Predict the first-row transition…

A: Here we are required to find the metal present in the complex

Q: <p>Which element has the higher ionization energy, Cu or Au?

A: The elements in a modern periodic table are arranged in an increasing order of their atomic number.…

Q: Which element has the higher first ionization energy, Cu or Au?

A: The first ionization energy is the energy required to remove an electron from a neutral atom to form…

Q: Suggest why the fluoride compound in which chromium has its highest oxidation state is CrF6 whereas…

A: The two compounds CrF6 and CrCl4 are given.

Q: Gold is the most electronegative transition metal. Explain?

A: Electronegative character is the tendency of an atom to pull the bonding pair of electrons.

Q: 3+ (d) [Cr(OH)2]6* ions are pale blue-green but chromate (Cr,O,) ion is an intense yellow in colour.…

A:

Q: What do you mean by ligands?

A: Ligands have to be explained below.

Q: On the basis of the 18-electron rule, identify the first-row transition metal for each of the…

A: We have to identify the first row transition element for the given metal complex on the basis of…

Q: How would you account for the following :(i) Among lanthanoids, Ln (III) compounds are predominant.…

A: Most common oxidation state of Lanthanoids = +3

Q: Predict the number of unpaired electrons and the magnetic properties of [Fe(C2O4)3]3- ion.

A: In the given complex, the oxidation state of iron is +3, so 5 electrons are present in the 3d…

Q: 18. Isomeric cobalt compounds and [Co(NH3)sBr]SO4 are red and violet respectively. Which of the…

A: Isomeric structures are [Co(NH3)5Br]SO4    and [Co(NH3)5SO4]Br Among them [Co(NH3)5SO4]Br is red in…

Q: 4. The Ni (aq) cation is green, but Zn-(aq) is colorless, Explain. The Cu2 (ag) cation is blue, but…

A: Color of transition metal complexes is due to d-d transition. Transition metals with vacant d…

Q: Which of the following classifications are the most accurate? Select one: O a. Ce, Eu, Gd, Er: inner…

A:

Q: 16 1 1111 Example 4. Why do the transition elements exhibit higher enthalpies of atomisation? ( ADA…

A: The transition elements exhibit higher enthalpy of atomisation because

Q: In the solid state, [Fe(CO)5] possesses a trigonal bipyramidal structure. Predict the mass spectrum…

A: Fe(CO)5+→Fe(CO)4+ →Fe(CO)3+ →Fe(CO)2+ →Fe(CO)+ → Fe+ m/z=195       167              139…

Q: Why the reactivities of either Co(III) or Cr(III) are very low?

A: When the ligand field stabilization energy of the metal ion is low  then the metal ion is less…

Q: (a) What is the range in electronegativity across the first (3d)transition series? (b) What is the…

A: (a) Transition elements exhibit a relatively small change in electronegativity consistent with the…

Q: The complexes (V(H2O)6)^3+ and (VF6)3- are known .what gives rise to their color and which of them…

A: In the above two complexes, Vanadium is in the +3 oxidation state. The electronic configuration of…

Q: When solid CrO3is dissolved in water, the solution is or-ange rather than the yellow of H2CrO4. How…

A:

Q: What is the  colour of K[Cr(C2O4)2(H2O)2].2H2O?

A: The complex, K[Cr(C2O4)2(H2O)2].2H2O is called potassium diaquabis(oxalato)chromate(III) dihydrate.

Q: Rank the following in order of decreasing and energy of light absorbed: [Cr(en)₃]³⁺, [Cr(CN)₆]³⁻,…

A: The splitting energy increases, as the strength of the ligand increases.

Q: For the hexacyanoferrate(III) ion, [Fe(CN)6]^3- calculate the crystal field stabilization energy…

A: Given : We have to calculate the CFSE for [Fe(CN)6]3- .

Q: Why do transition metals often react chemically as if they have a valence of 2?

A: the explanation is as follows:

Q: 2.The atomic number of iron is 24 what is the correct electronic configuration of FE3+ 3.The shape…

A:

Q: Explain the following observations :(i) Copper atom has completely filled d orbitals (3d10) in its…

A: The elements in which the last electron is filled in d sub shell are known as transition elements.

Q: (a) What is the lanthanide contraction? (b) How does it affectatomic size down a group of transition…

A: Lanthanoid contraction, in chemistry, is the steady decrease in the size of the atoms and ions of…

Q: How would you account for the following: (i) Among lanthanoids, Ln(III) compounds are predominant.…

A: To find: How will account for the given statements.

Q: What is the chemical formula of Tetraquadibromochromium(III) chloride?

A: Given,  The name of the complex compound is: Tetraquadibromochromium(III) chloride The chemical…

Q: On the basis of the 18-electron rule, identify the first-row transition metal for each of the…

A:

Q: Co(NH3)4C1803]+ + 2H3O+ →1.20 [Co(NH3)5(H20)]3+ + 2H2O + CO2 If the oxygen atoms of the coordinated…

A: Given: CoNH34C18O3++2H3O+→CoNH35H2O3++2H2O+CO2.

Q: The decavanadate ion is a complex species with chemicalformula V O10 282-. It reacts with an excess…

A: The oxidation number represents the number of electrons gain or loses by an element to become…

Q: On the basis of the 18-electron rule, identify the first-row transition metal for each of the…

A:

Q: All of the following are diamagnetic species except ______. a. bis(oxalato)nickelate(II) b.…

A: Paramagnetic substances can be defined as the substances that have unpaired electrons and…