Rank the elements by effective nuclear charge, Zeff, for a valence electron. Highest Zeff Lowest Zeff Answer Bank Al Cl Na

Q: One blue photon (^ = 470 nm) is sufficient to drive which reaction(s) below? A. Dissociation of…

A: Given that : The wavelength of blue photon = 470 nm We have to identify which of the reactions below…

Q: 2c. electron affinity * Cs Pt Al Li B B Pt Al Li Cs Cs Pt Li Li B Li Pt ALCSR O O

A: We know that, atomic radius, which is the distance between an atom's nucleus and the outermost…

Q: Q4. Consider the table Ion lonic radius (nm) S Li* 0,06 +13,4 2+ Ca 0.099 -53.1 (a) Why values of S…

A: Interpretation -  According to given table values to tell about -  To tell about why Som  for the…

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

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Q: Which one of these atoms or ions has exactly one unpaired electron in its ground state? Select one:…

A: Unpaired electrons concept.

Q: Q and R are in the same period where the proton number of Q is smaller than R. Choose the best…

A: Effective nuclear charge increase from left to right in period .  It is given that proton number of…

Q: wave has a frequency of 6.2 x 1013 Hz. What is its energy? a. 4.1 x 10-20 Ob.4.8 x 10-6 OC 1.1 x…

A: Applying formula E=hv

Q: Which one of these atoms or ions has exactly one unpaired electron in its ground state? Select one:…

A: In orbitals, electrons are filled according to increasing energy . For example in p subshell there…

Q: Group the electronic configurations of neutral elements in sets according to those you would expect…

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Q: Pairing Smaller radius Explanation Rb or Br Ba or Mg N or N Se2- or Sr 27

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Q: alculate the charge of the acting nucleus that the last valence electron senses in the cobalt cycle…

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Q: Like nickel, iron reacts with carbon monoxide to form a compound having the formula M(CO)n that…

A: Electronic configuration of iron is [Ar] 3d6 4s2. or 1s22s22p63s23p63d64s2 Fe(0) has 8 valence…

Q: Ionization of which of the following atoms/ions is most energetically costly? A. Ne B. Na1+ C. Mg2+…

A: The species requiring more lonisization energy is most energetically costly. With the help of…

Q: Which of the following particles would NOT have the ground-state electron configuration indicated…

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Q: If Rb forms an ion, what is the most likely charge? Group of answer choices +2 +1 +3 -2 -1 -3

A: The atomic number of rubidium (Rb) is 37. The position of rubidium in the periodic table is in…

Q: Rank the elements by effective nuclear charge, Zef, for a valence electron. Highest Zeff Lowest Zeff…

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Q: Which of the following atom does belong to lanthanide group? Group of answer choices A.) U: Z = 92…

A: Given :-  A.) U: Z = 92 B.) Hg: Z = 80 C.) Ce: Z = 58 D.) Cs: Z = 55    To identify :- a…

Q: Write the full configuration for the following: a) K: b) Ca: c) O(but with 2 extra electrons): d)…

A: The full electron configuration can be written by filling electrons into the subshells in increasing…

Q: Which of the following has electrons in the 5p shell: Group of answer choices 1 - Cd 2 - As 3 - Cr 4…

A: 1. Cadmium has an atomic number of 48. So, its electronic configuration is…

Q: Write the atomic configuration of these elements. w solution K - 19 Sb - 51 U – 92 Sample below

A: Atomic configuration of an element represents the electron filling in each orbit.

Q: Which of the following pairs is incorrectly matched? lon Electron Configuration a Lit 1s2 b Ca+2…

A: The charge on element is generated after losing or gaining the electrons. If the element gains…

Q: Q9. When the following equation is balanced in acidic solution, the coefficients for H,0, 50,' and…

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Q: Which is the valence shell of K+ ion?   a. L b. M c. K d.

A: Valence shell means the outermost shell.

Q: Match the species on the left (a-e) with their corresponding colors on the right (1-5):

A: Answer: Hg2Cl2 is white in color. PbCrO4 is yellow in color .It is used in paints and pigments. NiS…

Q: Calculate the wavelength (in nm) of the light radiation capable of causing an ionization energy…

A: Given data, Energy (E) = 502 × 10-7 J/mol So, energy of 1 mole of light radiation is 502 × 10-7 J…

Q: The steps to the Born-Haber cycle for RbCl are outlined. Identify each step as endothermic or…

A: Overall reaction is Exothermic

Q: 100 10 0.1 Binding Energy (MJ/mol) The photoelectron spectrum for the element boron is represented…

A: Answer : (B) The spectrum shows a single electron in the 2p subshell

Q: 5 WR TE THE HENDERSON - HASSEL BACH EQUATION. Vell

A: Since you have posted multiple questions, the answer for first question is given below. Kindly…

Q: Where does the 21.8 x 10-19 come from in the problem below? is there any easier way to calculate?…

A: When an electron jumps from higher state to the lower state then it emits energy in form of…

Q: Which atom below has the smallest ionization energy? a. Bromine b. Calcium c. Cesium d. Potassium…

A: Ionisation energy can be defined as:  The energy required to remove an electron from an isolated…

Q: Of the species O2- ,  F- , Na+, Ne what is the predicted order in terms of increasing size? Group of…

A: Atom is losing an electron and forms cation  and its size  is decreased  Atom is gaining electrons…

Q: Provide brief (1-2 sentence) explanations for the following observations. Your explanations should…

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Q: Rank in ion size (>/<) Fe32+ ___ Fe3+ Ca2+ ___ Ca O2- ___ O- Na+, Rb+, Al3+

A: Applying concept of factors affecting size i.e. -ve,+ve charge and charge potential.

Q: Estimate the energy in ev of a K shell electron in magnesium (Z = 12). |-1958.4 Your response…

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Q: How many valence electrons are in CH3CO? O A. 17 В. 24 O C. 20 O D. 18 Reset Selection

A: We have to count valence electron on each atom . first draw Lewis structure then we will count the…

Q: Place the following elements in order of decreasing atomic size: silicon, nitrogen, helium,…

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Q: Q/Choose between parentheses 1-Element like ....... the nucleus has a weaker attraction to its…

A: Solution :          Electrons are negatively charged particles that are present in the orbit around…

Q: Rank the elements by effective nuclear charge, Zerr, for a valence electron. Highest Zer Lowest Zerr…

A: Effective nuclear charge can be determined by following formula - Z* = Z - S Where  - Z* = effective…

Q: Choose suitable order to indicate working principle of mass spectrometry Nebulization, pressure…

A: A multiple choice question based on mass spectrometry, which is to be accomplished.

Q: Which atoms/ions fit the electron configuration? 1s22s22p63s23p64s13d5

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Q: How many electrons are in 99Tc+?

A: Every element has electrons equal to its total atomic number given in the periodic table.

Q: MCQ 16: The electronic configuration of clectrons involves their addition starting from lowest…

A: In case of entry of electrons into the orbitals it maintains Aufbau principle, which says that…

Q: Rank the elements by effective nuclear charge, Zeff, for a valence electron. Highest Zef Lowest Zeff…

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Q: Order the following elements from largest atomic radius to smallest? Group of answer choices Ca >…

A: The elements given are Ca, Ga, Se and Kr.

Q: P This dot structure represents which of the following answers: O P O (Ne] 3s^2 3p^3 O PA3+ O (Ne]…

A: In the lewis dot structure of an atom, the dots represent the valence electrons present in an atom.

Q: Flourine has an atomic # Z = 9. How many protons, electrons, and neutrons are in a flourine atom…

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Q: Which of the following matrices will perform the following 同-间 目E: Select one: O 1.B 2.A O 3. C O…

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Q: Construct the orbital diagram for arsenic. 4p DD 3d 4s COD Answer Bank 3p 11 3s COD 2p 2.s 1s Energy…

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Q: 3-48 Based on periodic table position, select the two elements in each set of elements that would be…

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