Part A Which of the following have the same number of valence electrons? O Cs, Ba, Lu O P, As, Sb O Al, Ge, Sb O Cs, Bi, At O Ar, Kr, Br

Q: What is the correct order of decreasing size of the following ions (from left to right)? OF O>N> pa-…

A: What is the decreasing order of size of ions --

Q: 6. Using the periodic table, arrange the following in increasing order: a. Electronegativity: Fr,…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: (a) Which ion is smaller, Co3+ or Co4+? (b) In a lithium-ionbattery that is discharging to power a…

A: (a) The size of the cation is always smaller than the parent atom because after the removal of…

Q: Which species has the smallest atomic radius: 1. Li 2. Be 3. F 4. C

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Q: Which of the following species has the smallest ionic radius? A) s2- B CI- C) A13+ D Na+ E) Mg2+

A: All the elements given in the option fall in the same period. S2- and Cl- ions gain electron to…

Q: Arrange these ions from largest to smallest ionic radius Ba2+,  Cs+,  Te2-,  I,  Sb3-

A: ions from largest to smallest ionic radius is  Sb3- >Te2- >  I  >  Cs+  > Ba2+

Q: Compared to their neutral atom counterparts, ions will have smaller or larger atomic radii due to…

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Q: An element X has the electron configuration [Kr] 5s24d105p³. The formula for the bromide of X is…

A: Ionisation energy is the amount of energy required to remove an electron from the isolated gaseous…

Q: write the noble gas configuration for the neutral atom Cobalt:

A: Cobalt is a d-block element with atomic number 27 and symbol "Co" ,  In Co total 27 electrons are…

Q: The electron distribution of the -1 charged ion of the Cl atom is similar to that of which atom? O…

A: Given: Which atom will have similar electron distribution as that of the Cl atom with -1 charge.

Q: The first three ionization energies of an element X are IE, = 590 kJ-mol-1 IE2 = 11450 kJ-·mol-1 IE3…

A:

Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

A: 1) Na>Mg>Mg+ 2) I->I>Br 3) Al>Si>S

Q: 5. Ch 8, Problem 56: Which compound in each of the following pairs of ionic substances has the most…

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Q: 9.56 Using the periodic table only, arrange the elements in each set in order of increasing EN: (a)…

A: Introduction 1. Generally on moving from left to Right in Periodic Table , the Electronegativity of…

Q: Arrange these ions according to ionic radius. Ca2+, K+, Cl-, S^2-, P^3-

A: Rule: A nucleus of strong or high positive charge pulls its valence electron cloud towards itself…

Q: Arrange the following sets of 1ons in order of decreasıng ionic radıı. (a) Br, Cl", 0² , s- (b) Cs*,…

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Q: Which groups of elements, indicated by letter on the periodic table, have three unpaired p electrons…

A: The group of elements which have 3 unpaired p electrons in subshell

Q: Which atom in the H-F bond has a partial positive charge (δ⁺)? A) H B) F C) Both D) Neither   3.…

A: The Charge on the atom is dependent upon the electronegativity difference between the both atoms…

Q: Give the most probable ion formed from each of the following elements.a. O c. Alb. Br

A: Most probable ion means the ionic state in which it is generally found. Ion is a charged species and…

Q: These 2 atoms are isoelectronic b.) Cl- and Ar N pup 2-0 (-) mo lip re of them

A: The answer is given as follows

Q: Without consulting any tables, arrange the following sub- stances in order and explain your choice…

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

Q: Arrange the following cations in order of increasing ionic radii: Fr+, Cs+, Rb+, B3+, Al3+, Ga3+

A: Arrange the following cations in order of increasing ionic radii: Fr+, Cs+, Rb+, B3+, Al3+, Ga3+

Q: 7. Which element has the smallest first ionization energy? (a) Cs (b) Ga (c) K (d) Bi (e) As 8.…

A: [7.]  (a.) Cs  [8.]  (e.) Ca  [9.]  (b.) HCN , O2 , CO2 [10.]  (c.) trigonal pyramidal

Q: Which of the following species has the 'second smallest' radius:  Ti2+, V3+, K+, Br-, Cl-…

A: In this question, we will select the second smallest radius ion.  You can see the explanation and…

Q: The order of increasing ionic radius of the following is: (a) K* <Li* <Mg < Al (c) Li* <K* <Mg* <Al*…

A: The given ions are K+, Li+, Mg2+, Al3+.

Q: 12. Why does Li have a larger first ionization enengy than Na? OA Because Li has only 3 electrons…

A: Ionization energy :-  The amount of energy required to remove an electron from an isolated neutral…

Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

A: The question is based on periodic properties of elements. We have to arrange the given species in…

Q: Which is the correct noble gas electron configuration for Sb? O (Kr)5s25dt0 5p O Ar)5s25p3 O…

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Q: Which of the following species (in gas form) has a positive electron affinity value (only one)?…

A: Electro affinity is the energy released when an electrons enters in the valence shell of an isolates…

Q: Rank the following five ions in order of decreasing radius. Use the periodic table as necessary.…

A: Atomic radius: The atomic radius of an element decreases as we move from left to right in a period…

Q: Arrange the atoms and/or ions in the following groups in order of decreasing size. 1. S2-, Cl-, K+…

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Q: What is the maximum number of electrons that can have n = 5, l = 3 and ml = -1.

A: Given, Principal quantum number "n" value = 5 Azimuthal quantum number "l"=3 Magnetic quantum number…

Q: The coefficients on balancing the following reaction will be. Pb(OH)2 + HCI H2O + PbCl2 a) 1,2,2,1…

A: To balance the Chemical reaction , we have to make same number of atoms on both sides of Reaction .…

Q: What is the valence shell electron configuration of the halogens? ns?np? or ns? or ns' or ns?np$ ns1…

A: Distribution of no.of electrons present in the valency shell is called as valency shell electronic…

Q: A – most electronegative element in - Period 4. B - smallest atom in Group 5A. C- alkaline earth…

A: A - most electronegative element in Period 4. Answer : bromine Reason : the tendency to attract…

Q: Question 9 of 13 How many valence electrons are in atom with the following electron configuration?…

A: Introduction :  The distribution of electrons into orbitals of an atom is called its electronic…

Q: atoms or ions 2- Se, Se, Br F, C1, CI S, AI, P atoms or ions in order of decreasing size 0.0.0 0.0.0…

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Q: What has the highest number valence electrons: N, Ca, O, As, or I?

A: Valance electrons :-  The number of electrons present in outermost shell of atom are called valence…

Q: Which of the following places the ions in order from smallest to largest?  Na+, Mg2+, P3-, Cl-…

A: The species given are Na+ ,Mg2+ ,P3- and Cl-  Since after losing the 1 valence electron by Na and 2…

Q: What is the electron configuration of: Ag, Bi^2-, Rh^3+, Sn^3+, Si^-

A: The atomic number of Ag = 47. The atomic number of  Bi = 83 The atomic number of Rh =45 The atomic…

Q: O Hi Resources cule. Include all hydrogen atoms and nonbonding electrons.

A:

Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

A: The question is based on the concept of periodic properties. it talks of atomic size of the atoms,…

Q: Which of the following is the correct electron configuration for bromine's common ion? O…

A:

Q: Which atom in the C-F bond has a partial negative charge (δ⁻)? A) F B) C C) Both D) Neither

A: The electronegativity of 'C' is approximately 2.5 and electronegativity of 'F' is 3.98.

Q: Which Atom or ion ineach of following pairs has a Lorger radiuo? A N3- or N B Cazt or Baz+ キこ or Al3

A: Given: To compare the radius of anions.

Q: Element M has a high tendency to form M2* ions. The electron configuration of M must end with ns" np…

A: The correct answer about electron configuration is given below

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.