As one proceeds from left to right across Period 3 of the Periodic Table, there is a decrease m! a) ionization energy b) electron affinity c) metallic characteristics d) valence electrons Which of the following is a synthetic element? a) Americium b) Uranium c) Fermium d) All of the above e) Only a and c What does the graph to the right best represent? a) atomic radii of Period 2 b) ionization energy in Period 3 c) atomic radii in the Chalcogen group d) Electronegativity in Group 17 e) Who in the world knows!! INCREASING ATOMIC # ->

As one proceeds from left to right across Period 3 of the Periodic Table, there is a decrease m! a) ionization energy b) electron affinity c) metallic characteristics d) valence electrons Which of the following is a synthetic element? a) Americium b) Uranium c) Fermium d) All of the above e) Only a and c What does the graph to the right best represent? a) atomic radii of Period 2 b) ionization energy in Period 3 c) atomic radii in the Chalcogen group d) Electronegativity in Group 17 e) Who in the world knows!! INCREASING ATOMIC # ->

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter2: Atomic Structure And Periodicity

Section: Chapter Questions

Problem 158CWP

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Similar questions

Consider the following ionization energies for aluminum: Al(g)Al+(g)+eI1=580kJ/molAl+(g)Al2+(g)+eI2=1815kJ/molAl2+(g)Al3+(g)+eI3=2740kJ/molAl3+(g)Al4+(g)+eI4=11,600kJ/mol a. Account for the trend in the values of tbe ionization energies. b. Explain the large increase between I3 and I4
The first ionization energies of As and Se are 0.947 and 0.941 MJ/mol, respectively. Rationalize these values in terms of electron configurations.
Cerium, as noted in Applying Chemical Principles: 22.3 The Rare Earths, is a relatively abundant lanthanide element that has some important uses. Cerium(IV) oxide. CeO2, is widely used as a polishing agent for glass. Cerium(III) sulfide, Ce2S3, is becoming more widely used as a red pigment to replace cadmium pigments, which are environmentally less desirable. (a) Give the electron configurations (using the noble gas notation) for Ce, Ce3+, and Ce4+. (b) Is either Ce3+ or Ce4+ paramagnetic? If so, how many unpaired electrons does each have? (c) The solid state structure for CeO2 is shown below. Describe the unit cell of the compound. How is this structure related to the formula?
We expect the atomic radius to increase going down a group in the periodic table. Can you suggest why the atomic radius of hafnium breaks this rule? (See data below.)
Periodic Properties I A hypothetical element, X, has the following ionization energy values: First ionization energy: 900 kJ/mol Second ionization energy: 1750 kJ/mol Third ionization energy: 14,900 kJ/mol Fourth ionization energy: 21,000 kJ/mol Another element, Y, has the following ionization energy values: First ionization energy: 1200 kJ/mol Second ionization energy: 2500 kJ/mol Third ionization energy : 19,900 kJ/mol Fourth ionization energy: 26,000 kJ/mol a To what family of the periodic table would element X be most likely to belong? Explain? b What charge would you expect dement X to have when it forms an ion? c If you were to place elements X and Y into the periodic table, would element Y be in the same period as element X? If not in the same period, where might they be relative to each other in the periodic table? d Would an atom of Y be smaller or larger than an atom of X? Explain your reasoning.
Of the five elements Al, Cl, I, Na, Rb, which has the most exothermic reaction? (E represents an atom.) What name is given to the energy for the reaction? Hint: note the process depicted does not correspond to electron affinity E+(g)+eE(g)
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.

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