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Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640

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Section
BuyFindarrow_forward

Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640
Chapter 7, Problem 80SCQ
Textbook Problem
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Explain why the reaction of calcium and fluorine does not form CaF3.

Interpretation Introduction

Interpretation:

The chemical reaction of Calcium (Ca) and fluorine (F) does not form Calcium fluoride (CaF3); the reason has to be explained.

Concept Introduction:

Ionization energy (IE): The ionization energy is the required to remove an electron from an atom in the gas phase.

General formula of ionization energy= Atom in the ground state(g)Atom+(g)+eΔU=Ionizationenergy(IE)

As predicted by coulomb’s law, energy must be supplied to overcome the attraction between an electron and the nucleus and to separate the electron from the atom. Thus ionization energies always have positive values. An electron father from the nucleus generally has smaller ionization energy and electron closer to the nucleus has larger ionization energy. 

Increase and decrease electro negativity: The less vacancy electrons an atoms has the least it will gain of electrons. Moreover the electron affinity decrease down the groups and from right to left across the periods on the periodic table, the reason is electrons are placed in a higher energy level far from the nucleus thus a decrease from its pull.

Explanation of Solution

Overallcharge(CaF3)=1(+2)-3=

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Chapter 7 Solutions

Chemistry & Chemical Reactivity
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Ch. 7.4 - 2. Which of the following ions has the largest...Ch. 7.4 - Which of the following species is most...Ch. 7.5 - Without looking at the figures for the periodic...Ch. 7.5 - What is the trend in sizes of the ions K+, S2, and...Ch. 7.5 - Locate the elements C, N, Si, and P in the...Ch. 7.6 - Give the electron configurations for iron and the...Ch. 7.6 - In hemoglobin, iron can be in the iron(II) or...Ch. 7.6 - Why are copper atoms (radius = 128 pm) slightly...Ch. 7.6 - In hemoglobin, the iron is enclosed by the...Ch. 7.6 - 1. Which of the following is an incorrect...Ch. 7.6 - 2. 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B. Al, and C with regard...Ch. 7 - Two elements in the second transition series (Y...Ch. 7 - The configuration for an element is given here....Ch. 7 - The configuration of an element is given here. (a)...Ch. 7 - Answer the questions below about the elements A...Ch. 7 - Answer the questions below concerning ground state...Ch. 7 - Nickel(II) formate [Ni(HCO2)2] is widely used as a...Ch. 7 - Spinets are solids with the general formula M2+...Ch. 7 - The following questions use concepts from this and...Ch. 7 - Which ions in the following list are not likely to...Ch. 7 - Answer the following questions about first...Ch. 7 - The ionization of the hydrogen atom can be...Ch. 7 - Compare the configurations below with two...Ch. 7 - The bond lengths in Cl2, Br2, and I2 are 200, 228,...Ch. 7 - Write electron configurations to show the first...Ch. 7 - What is the trend in ionization energy when...Ch. 7 - (a) Explain why the sizes of atoms change when...Ch. 7 - Which of the following elements has the greatest...Ch. 7 - What arguments would you use to convince another...Ch. 7 - Explain why the first ionization energy of Ca is...Ch. 7 - The energies of the orbitals in many elements have...Ch. 7 - The ionization energies for the removal of the...Ch. 7 - Using your knowledge of the trends in element...Ch. 7 - The densities (in g/cm3) of elements in Croups 6B,...Ch. 7 - The discovery of two new elements (atomic numbers...Ch. 7 - Explain why the reaction of calcium and fluorine...Ch. 7 - Thionyl chloride. SOCl2, is an important...Ch. 7 - Sodium metal reacts readily with chlorine gas to...Ch. 7 - Slaters rules are a way to estimate the effective...

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