Chemistry Chemistry Practice Problems Solutions Library

Periodic Trends Solutions Library

Access 52 Periodic Trends video and text solutions to help you complete your homework.

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52 solutions

Periodic Trends

Q. The most acidic oxides are formed from elements found in the _________ region of the periodic table.A. upper rightB. upper leftC. centerD. lower ri...

Solved • Apr 23, 2020

Periodic Trends

Q. Elements with _______________ first ionization energies and ___________ electron affinities generally form anions.A. low, very negativeB. high, pos...

Solved • Apr 23, 2020

Periodic Trends

Q. Elements with ________________ first ionization energies and ___________ electron affinities generally form cations.A. low, very negativeB. high, p...

Solved • Apr 23, 2020

Periodic Trends

Q. Using the data in the figures above calculate delta E for the reaction Na(g)+ Cl(g) →  Na+(g)+ Cl-(g) in kJ/mol

Solved • Apr 14, 2020

Periodic Trends

Q. Of the elements below, __________ has the highest melting point.A) CaB) KC) FeD) NaE) Ba

Solved • Aug 29, 2019

Periodic Trends

Q. For the following group, place the atoms and/or ions in order of decreasing size.a. Cu, Cu+, Cu2+

Solved • Nov 27, 2018

Periodic Trends

Q. Arrange the following in order of increasing radius and increasing ionization energy.b. Se, Se-, Cl, Cl+

Solved • Nov 26, 2018

Periodic Trends

Q. You may want to reference (Pages 274 - 278) Section 7.6 while completing this problem.Which of the following charts below shows the general periodi...

Solved • Nov 12, 2018

Periodic Trends

Q. In the ionic compounds LiF, NaCl, KBr, and RbI, the measured cation-anion distances are 2.01 Å (Li–F), 2.82 Å (Na–Cl), 3.30 Å (K–Br), and 3.67 Å (R...

Solved • Nov 12, 2018

Periodic Trends

Q. Figure: Metals, metalloids, and nonmetals. How do the periodic trends in metallic character compare to those for ionization e...

Solved • Nov 12, 2018

Periodic Trends

Q. You may want to reference (Pages 284 - 288) Section 7.8 while completing this problem.Potassium and hydrogen react to form the ionic compound potas...

Solved • Nov 12, 2018

Periodic Trends

Q. Compare the elements bromine and chlorine with respect to the following properties: (a) electron configuration, (b) most common ionic charge, (c) f...

Solved • Nov 12, 2018

Periodic Trends

Q. Silver and rubidium both form +1 ions, but silver is far less reactive. Suggest an explanation, taking into account the ground-state electron confi...

Solved • Nov 12, 2018

Periodic Trends

Q. Cesium tends to be the most reactive of the stable alkali metals (francium, Fr, is radioactive and has not been extensively studied).What atomic pr...

Solved • Nov 12, 2018

Periodic Trends

Q. True or False:Cations are larger than their corresponding neutral atoms.

Solved • Nov 12, 2018

Periodic Trends

Q. True or False:Li+ is smaller than Li.

Solved • Nov 12, 2018

Periodic Trends

Q. Arrange these atoms and ions in order of decreasing radius: Cs+, Ba2+, I–

Solved • Nov 12, 2018

Periodic Trends

Q. Suppose you were trying to find a substitute for K+ in nerve signal transmission. Where would you begin your search? What ions would be most like K...

Solved • Nov 12, 2018

Periodic Trends

Q. Suppose you were trying to find a substitute for Na+ in nerve signal transmission. Where would you begin your search? What ions would be most like ...

Solved • Nov 12, 2018

Periodic Trends

Q. Data from the planet Zog for some main-group elements are shown below (Zoggian units are linearly related to Earth units but are not shown). Radio ...

Solved • Oct 22, 2018

Periodic Trends

Q. 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...

Solved • Oct 16, 2018

Periodic Trends

Q. Predict some of the properties of element 117 (the symbol is Uus, following conventions proposed by the International Union of Pure and Applied Che...

Solved • Oct 16, 2018

Periodic Trends

Q. Element 106 has been named seaborgium, Sg, in honor of Glenn Seaborg, discoverer of the first transuranium element. Write the expected electron con...

Solved • Oct 16, 2018

Periodic Trends

Q. Which ion has the smallest radius: Na-, Na, or Na+?

Solved • Oct 16, 2018

Periodic Trends

Q. Of the following species, __________ has the largest radius.Ar, Sr2+, Kr, Br-, Rb+

Solved • Jun 8, 2018

Periodic Trends

Q. The atomic radium of element 115 is predicted to be that of bimuth (83) larger than, smaller than, equal to The electron affinity of element 115 is...

Solved • Apr 4, 2018

Periodic Trends

Q. How are the elements arranged in the modern periodic table?a. elements are arranged in a table by atomic number (increased from left to right)b. el...

Solved • Mar 23, 2018

Periodic Trends

Q. a. Arrange the following elements in order of decreasing first ionization energy starting with the highest.SCaFRbSib. Arrange the ions in order of ...

Solved • Mar 23, 2018

Periodic Trends

Q. Using the data in the figures below, calculate ΔE for the reaction Na(g)+ Cl(g) → Na+(g)+ Cl-(g) in kJ/mol.  

Solved • Mar 23, 2018

Periodic Trends

Q. Arrange the following in order of increasing radius:O2-, F- , Ne, Rb+, Br-

Solved • Mar 20, 2018

Periodic Trends

Q. The following reaction can be written as the sum of two reactions, one of which relates to ionization energy and one of which relates to electron a...

Solved • Mar 19, 2018

Periodic Trends

Q. PART A:What is the reaction that corresponds to the first ionization energy of rubidium, Rb?PART B:What is the reaction that corresponds to the ele...

Solved • Mar 13, 2018

Periodic Trends

Q. An element with a high likelihood of becoming an anion, would be expected to have a relatively a) large negative electron affinity and a relativel...

Solved • Aug 25, 2017

Periodic Trends

Q. For each of the following questions circle the correct answer. There is one and only one correct answer per question. a) Which of the following is...

Solved • Oct 12, 2016

Periodic Trends

Q. Which is the larger species in each pair?a. Sr or Sr2+ b. N or N3-c. Ni or Ni2+d. S2- or Ca2+

Solved • Sep 7, 2016

Periodic Trends

Q. Which is the larger species in each pair? a. Li o r Li+b. Cs1- o r Cs+ c. Cr1-  or Cr3+d. O or O2-

Solved • Sep 7, 2016

Periodic Trends

Q. Let X be a hypothetical element. Which of the following would be largest?1. X2+2. X3. X+4. X2–5. X–

Solved • Aug 16, 2016

Periodic Trends

Q. In the generation of most anions,the energy change (kJ/mol) that ____ an electron is ______. This is called __________. a. removes, negative, meta...

Solved • Aug 11, 2016

Periodic Trends

Q. Noble gases have:A. High Ionization Energy, Low e– affinityB. Low Ionization Energy, Low e– affinityC. High Ionization Energy, Highe– affinityD. Lo...

Solved • Aug 8, 2016

Periodic Trends

Q. Which of the following ions or atoms will be smallest and why?S2− , Cl − , Ar, K + , Ca2+A. S2− because it has the most electronsB. S2− because it ...

Solved • Aug 8, 2016

Periodic Trends

Q. The species F -, and Na+ all have the same number of electrons. Which is the predicted order when they are arranged in order of decreasing size (la...

Solved • May 11, 2016

Periodic Trends

Q. Which of the following correctly selects the species of larger ionic radius in each atom-ionic species pair? H+ and H    Fe and Fe3+   S and S2-a) ...

Solved • Apr 4, 2016

Periodic Trends

Q. The radii of the species N, N + and N ‾ decrease in the following ordera) N+ > N > N‾b) N+ >  N‾ > Nc) N > N‾ > N+d) N‾ > N &g...

Solved • Mar 22, 2016

Periodic Trends

Q. Identify the chemical species that has the smallest radius. a.  N5- b.  N2- c.  N0 d.  N1+ e.  N3+

Solved • Mar 4, 2016

Periodic Trends

Q. Calculate the energy change for the reactionK(g) + Br(g) → K+(g) + Br– (g)given the following ionization energy (IE) and electron affinity (EA) val...

Solved • Mar 1, 2016

Periodic Trends

Q. Which statement about the first ionization energy of Cl - is true?a. I.E.1 of Cl - is equal to -E.A. 1 of Clb. I.E.1 of Cl - is equal to E.A. 1 of ...

Solved • Feb 22, 2016

Periodic Trends

Q. Let X be a hypothetical element. Which of the following would be largest? 1. X 2+ 2. X 3. X + 4. X 2-

Solved • Feb 17, 2016

Periodic Trends

Q. Which of the following has the largest radius?1. K +2. Cl -3. S4. Cl5. S 2-

Solved • Feb 17, 2016

Periodic Trends

Q. Which property of the third period nonmetallic elements might be the one depicted in the graph?

Solved • Feb 16, 2016

Periodic Trends

Q. The atomic radius of main-group elements generally increases down a column because __________.A. effective nuclear charge decreases down a columnB....

Solved • Feb 16, 2016

Periodic Trends

Q. In the generation of most anions, the energy change (kJ/mol) that ____ an electron is ____. This energy is called ___.a. Removes, negative, metalli...

Solved • Feb 16, 2016

Periodic Trends

Q. Which of these statements is false?   A. Atomic radius increases on going down a group. B. Second ionization energies are always larger than fir...

Solved • Feb 5, 2016