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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

Write electron configurations to show the first two ionization processes for potassium. Explain why the second ionization energy is much greater than the first.

Interpretation Introduction

Interpretation:

The second ionization energy of Potassium is much greater than the first ionization energy.

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. 

Explanation

First ionization energy of potassium (K), IE1 = 419 kJ/mol  

Commonelectronicconfigurationof potassium (K):_[1s22s22p63s23p64s1][1s22s22p63s23p64s0]+

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