The pentafluorides of the larger members of Group 5A(15)have been prepared, but N can have only eight electrons. A claim has been made that, at low temperatures, a compound with the empirical formula NF₅ forms. Draw a possible Lewis structure for this compound.

Q: Compounds such as NaBH4, Al(BH4)3, and LiAlH4 are complex hydrides used as reducing agents in many…

A: (a) The oxidation state of each element in NaBH4 Al(BH4)3 , LiAlH4 has to be given.   NaBH4 Let x be…

Q: Why do helium and lithium exhibit very different chemical behavior, even though they differ by only…

A:

Q: Complete and balance the following:(a) AsCl3(l) 1 H2O(l) → (b) Sb2O3(s) + NaOH(aq) →

A: Given reactions,        (a)  AsCl3(l) + H2O(l)  →(b)  Sb2O3(s) + NaOH(aq)  →

Q: What mass of silver oxide, Ag2I, is required to produce 25g of silver sulfadiazine, AgC10H9N4SO2,…

A: Molecular mass of any compound is sum of atomic masses of all the elements present in that compound…

Q: Compounds such as NaBH4, Al(BH4)3, and LiAlH4 are complexhydrides used as reducing agents in many…

A: (a) The oxidation state of each element in NaBH4, AlBH43, LiAlH4 has to be given. NaBH4 Let x be…

Q: to

A: The compound FeCaSi2O6 have a polymer unit called Si2O6⁴- .    This unit is called inosilicate.

Q: Give the name and symbol or formula of a Group 6A(16) element or compound that fits each description…

A: The elements of group 16 are given as follows: Oxygen (O) Sulfur (S) Selenium (Se) Tellurium (Te)…

Q: Of the elements Be, C, Cl, Sb, and Cs, which (a) has the lowestelectronegativity, (b) has the…

A: (a)

Q: Arrange the following material according to the increasing tendency to lose an electron. (I.) glass,…

A: Here we have to write the increasing tendency to lose elctrons in the following materials.

Q: Nitric acid forms an oxide of nitrogen on reaction with P4O10. Write the reaction involved. Also…

A: The electron dot formula shows the valence electrons which form the bond between the atoms in a…

Q: Write the reaction quotient, Qc, for each of the following reactions:(a) The first step in nitric…

A: Reaction quotient is the ratio between the concentration of products and the concentrations os the…

Q: Describe the structure and bonding in silicon dioxide and carbon dioxide

A: Silicon dioxide consists of Si and O atoms. All atoms in SiO2 are bonded to each other by the…

Q: Fluorine lies between oxygen and neon in Period 2. Whereas atomic sizes and ionization energies of…

A: The given data: The given elements are F, O, and Ne. To determine = The change in their…

Q: In what ways are the electronic structures of the group 14 (4a) elements similar?

A: In this question, we will discuss about why the electronic structures the group 14 elements similar.…

Q: Write balanced equations for the following reactions: a. The decomposition of dinitrogen oxide gas…

A: a. The decomposition of dinitrogen oxide gas to its elements: Dinitrogen oxide gas is decomposed…

Q: Acetylene 1C2H22 and nitrogen 1N22 both contain a triplebond, but they differ greatly in their…

A: a.

Q: In what ways are the electronic structures of the group 14 (4A) elements similar? In what ways are…

A: Ans. Group 14 elements have same valence electrons i.e valency. Group 14 elements have different…

Q: Draw a Lewis structure for(a) The cyclic silicate ion Si₄O₁₂⁸⁻(b) A cyclic hydrocarbon with formula…

A:

Q: Can we use the following Lewis structure to represent the structure of the carbonate ion (CO,² )?…

A:

Q: What is the VSEPR geometrical shape of the silicate ion, SiO32- ?

A:

Q: The number of unpaired electrons in the Po atom (period 6) is O 2 O 3 O 1 O 4

A: The element Po is Polonium. Since the oxygen group in the periodic table has the element Po.

Q: Which Group 5A(15) elements form trihalides? Penta-halides? Explain.

A: Introduction: Elements of group 5A(15)  are N, P, As, Sb and Bi. The electronic configuration of…

Q: 8a) Sketch a diagram showing the formation of energy levels from the valence orbitals for Rb, Rb2,…

A: a). We are given a crystal of Rb The formation of energy levels from the valance orbitals for Rb,…

Q: Choose the best Lewis structure for phosphoric acid (H 3 PO 4 )?

A: The structure of the H3PO4 is as given below:

Q: Illustrate the  Relationship among Boiling Points, Dipole Moments,and Polarizability of Some Binary…

A: To illustrate the relationship between the boiling points, dipole moments, and polarizability of…

Q: How many grams of gaseous ammonia will the reaction of 3.0 g hydrogen gas and 3.0 g of nitrogen gas…

A: The limiting reagent in a chemical reaction is a reactant that is totally consumed when the chemical…

Q: What geometric structure does IO2F2- have? (8O, 9F, 53I)

A: Structure and hybridization of  IO2F2- is,

Q: Write the electronic configuration of 3 Li and 26Fe and explain the possible valency they can…

A: filling of electron in orbital of element follows pauli exclusion principles.

Q: How many nonbonding electron pairs are there in the Lewisstructure of the peroxide ion, O22-?(a) 7…

A: Oxygen atom has 6 valence electrons. Non-bonding e- are those which are not involved in bonding.

Q: How do the acidities of the aqueous solutions of the alkaline earth metal ions (M 2+ ) change in…

A: An atom is composed of three main sub-atomic particles; electrons, neutrons, and protons. The atomic…

Q: Which of the following has the largest covalent radius ?   Mg Ca Sr Ba

A: Covalent radius of an element is defined as the half of the internuclear distance between two atom…

Q: Sulfurous acid has Ka1 = 0.0123 and Kaz = 6.607 x 108. At what pH does [HSO3] = [SO3²]?

A: H2SO3  ↔  HSO3-  +  H+                     Ka1 = 0.0123HSO3-  ↔  SO32-  +  H+…

Q: If galena (Pbs) was defined by metallic bonds ,calculate the radius ratio between the two elements…

A: Introduction: The radius ratio is the ratio of the cation (smaller ion) and that of the anion…

Q: Why the radius of Fe+2 is greater than Fe+3?

A: The distance from the nucleus to the outer most shell of an atom is called as the atomic radius. As…

Q: Q.5(a) The alkali metals follow the noble gases in their atomic structure. What properties of these…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first 3 sub-parts of…

Q: Which of the following is not an allotrope of phosphorus? A) red phosphorus B) white phosphorus C)…

A: Option C is correct.

Q: Write chemical equations for the following processes: Reduction of VO2+ to produce VO2+…

A: 1) Since the reduction reaction means gain of electrons And in VO2+ , V is in 5+ state and in VO2+ ,…

Q: Take into account the following: Both Land G and Elements Land are found in Group 17. (Halogen…

A: Halogens are the most electronegative elements in the periodic table   .

Q: boron hydrides were once evaluated for possible use as rocket fuels. Complete and balance the…

A: The combustion reaction given is  B2H6 (g) + O2 (g) ----> B(OH)3 (l)

Q: (i) What is the covalency of N in N2O5 ?(ii) Explain why phosphorus forms pentachloride whereas…

A: N, P and Bi have the following electronic configurations: N - 1s22s22p3 P - 1s22s22p33s23p3 Bi -…

Q: How many electrons does a halogen atom need to com-plete its octet? Give examples of the ways a Cl…

A: How many electrons does a halogen atom need to complete its octet? Give examples of the ways a Cl…

Q: A nonmetal like oxygen forms both ionic and covalent bonds, depending on the identity of the element…

A: Solution- Calcium (Ca) is a metal and it partially loses two electrons and transfers to oxygen atom…

Q: Compounds such as NaBH₄, Al(BH₄)₃, and LiAlH₄ arecomplex hydrides used as reducing agents in many…

A: NaBH₄, Al(BH₄)₃, and LiAlH₄ (a) Give the oxidation state of each element in these compounds. (b)…

Q: What is the valence electron configuration for Group 4A elements? Group 4A contains two of the most…

A: In the periodic table, 4A group elements are those that have 4 electrons in the valence shell.…

Q: Using Lewis symbols and Lewis structures, diagram the formation of SiCl4 from Si and Cl atoms.

A: Lewis dot structure of any atom or element is the representation of the valence electron around the…

Q: Write balanced equations for the following reactions selenium dioxide with aqueous potassium…

A: A chemical equation is a short form notation which is generally used to indicate a reaction. In a…

Quantum Mechanical Treatment of the Valence Bond Theory

Quantum mechanical treatment of valence bond theory refers to the relationship established between the quantum mechanical theory and the valence bond theory to describe the chemical bonding in a particular molecule.