Chemistry & Chemical Reactivity

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



Chemistry & Chemical Reactivity

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

Could the anion Li2 exist? What is the ion’s bond order?

Interpretation Introduction


The bond order of Li2 has to be calculated and it should be determined that whether the ion exist or not.

Concept Introduction:

Molecular orbital (MO) theory:  is a method for determining molecular structure in which electrons are not assigned to individual bonds between atoms, but are treated as moving under the influence of the nuclei in the whole molecule.

Bond order: The bond order has defined as the net number of bonding electrons pairs linking a pair of atoms. This same concept can be applied directly to molecular orbital theory, but not bond order is defined as.


Bond order with positive value might exist.


Molecular orbital correlation method of Lithium ions:

The Lithium ion has four electrons one each from the respective shells.

Atomicnumber of Lithium (Li)  = 3Li2-has7electronsExicitedstateaddingforoneelectronin(2s)shell1s22s21s22s1

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