291al ovlomGiven the following parfial electron configurations,I (Ne] 353p²I CHe] 2s² 2p5LEFFI [Kr] 55IV [Nel 35-3p4a) Identify each element.of atomíc size.increasingb) Rank the four elements în orderOfc) Rank them in order of increasing Tonizatron energy

An element is a pure substance that is made up of only one type of atoms. The atoms are electrically…

Given the following parfial electron configurationss, I (Ne] 3s 3p I (He] 2s2 2ps II [kr] 5s IV [Ne] 3s-3p4 a) Identify each element. b) Rank the four elements în order of increasing atomíc size C) Rank them in order of increasing Tonizatron energy.

Given the following parfial electron configurationss, I (Ne] 3s 3p I (He] 2s2 2ps II [kr] 5s IV [Ne] 3s-3p4 a) Identify each element. b) Rank the four elements în order of increasing atomíc size C) Rank them in order of increasing Tonizatron energy.

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter6: An Introduction To Spectrometric Methods

Section: Chapter Questions

Problem 6.9QAP: Cesium is used extensively in photocells and in television cameras because it has the lowest...

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Cesium is used extensively in photocells and in television cameras because it has the lowest ionization energy of all the stable elements. (a) What is the maximum kinetic energy of a photoelectron ejected from cesium by 520 nm light? Note that if the wavelength of the light used to irradiate the cesium surface becomes longer than 660 nm, no photoelectrons are emitted. (b) Use the rest mass of the electron to calculate the velocity of the photoelectron in (a).
In each of the following sets of elements, which element would he expected to have the highest ionization energy? msp;a.Cs,K,Lic.l,Br,Clb.Ba,Sr,Cad.Mg,Si,S
Consider the following statement "The ionization energy for the potassium atom is negative, because when K loses an electron to become K +, it achieves a noble gas electron configuration." Indicate everything that is correct in this statement. Indicate everything that is incorrect. Correct the incorrect information and explain.
Using the periodic table and without looking at Table 7.3, write electron configurations for the following elements: (a) P (b) Zn (c) Zr (d) In (e) Pb (f) U Use the spdf and noble gas notations. When you have finished, check your answers with Table 7.3.
6.80 Describe how valence electron configurations account for some of the similarities in chemical properties among elements in a group.
Which of the following statements is(are) true? a. F has a larger first ionization energy than does Li. b. Cations are larger than their parent atoms. c. The removal of the first electron from a lithium atom (electron configuration is ls2 2s1 ) is exothermic-that is, removing this electorn gives off energy. d. The He atom is larger than the H+ ion. e. The Al atorn is smaller than the Li atom.
The energy needed to remove one electron from a gaseous potassium atom is only about two-thirds as much as that needed to remove one electron from a gaseous calcium atom, yet nearly three times as much energy as that needed to remove one electron from K+ as from Ca+ . What explanation can you give for this contrast? What do you expect to be the relation between the ionization energy of Ca+ and that of neutral K?
(a) Predict the atomic number of the (as yet undiscovered) alkali-metal element in the eighth period. (b) Suppose the eighth-period alkali-metal atom turned out to have atomic number 137. What explanation would you give for such a high atomic number (recall that the atomic number of francium is only 87)?
Answer the following questions, assuming that ms, could have three values rather than two and that the rules for n, l, and ml are the normal ones. a. How many electrons would an orbital be able to hold? b. How many elements would the first and second periods in the periodic table contain? c. How many elements would be contained in the first transition metal series? d. How many electrons would the set of 4f orbitals be able to bold?
Using the Bohr model, determine the energy in joules of the photon produced when an electron in a L2+ ion moves from the orbit with n = 2 to the orbit with n = 1.
How many unpaired electrons are there 111 the following ions? (a) V3+(b) Sn4+(c) I-(d) W4+
The outermost electron in an alkali-metal atom is sometimes described as resembling an electron in the corresponding state of a one-electron atom. Compare the first ionization energy of lithium with the binding energy of a 2s electron in a one-electron atom that has nuclear charge Zeff , and determine the value of Zeff that is necessary for the two energies to agree. Repeat the calculation for the 3s electron of sodium and the 4s electron of potassium.