To show the resonating structures of Bicarbonate ion and also show the conversion of first structure to second with the help of arrows. Concept Introduction: Lewis concept states that atoms of various elements enter into chemical combination so as to attain the configuration of eight electrons in their outermost shell. They do so either by transference of electrons or by mutual sharing of electrons. A covalent bond is formed by sharing of same number of electrons between two atoms to complete their octet. Atoms taking part in covalent bond formation may share one, two or three electron pairs thus forming single, double and triple bond respectively. Example:
To show the resonating structures of Bicarbonate ion and also show the conversion of first structure to second with the help of arrows. Concept Introduction: Lewis concept states that atoms of various elements enter into chemical combination so as to attain the configuration of eight electrons in their outermost shell. They do so either by transference of electrons or by mutual sharing of electrons. A covalent bond is formed by sharing of same number of electrons between two atoms to complete their octet. Atoms taking part in covalent bond formation may share one, two or three electron pairs thus forming single, double and triple bond respectively. Example:
Solution Summary: The author explains that Lewis concept states that atoms of various elements enter into chemical combination so as to attain the configuration of eight electrons in their outermost shell. Atoms taking part in covalent bond formation may share one, two
To show the resonating structures of Bicarbonate ion and also show the conversion of first structure to second with the help of arrows.
Concept Introduction:
Lewis concept states that atoms of various elements enter into chemical combination so as to attain the configuration of eight electrons in their outermost shell. They do so either by transference of electrons or by mutual sharing of electrons.
A covalent bond is formed by sharing of same number of electrons between two atoms to complete their octet. Atoms taking part in covalent bond formation may share one, two or three electron pairs thus forming single, double and triple bond respectively.
The arrangement of atoms in several biologically important molecules is given here. Complete the Lewis
structures of these molecules by adding multiple bonds and lone pairs. Do not add any more atoms.
(a) the amino acid serine:
車
0-H
H-C-H
H
Н—N—с—с—о—н
H
(b)
нон
H-N-C-N-H
(c) pyruvic acid:
ноо
н—с—с—с—о—н
H.
(d) uracil:
H
(e) carbonic acid:
H-0-C-0-H
2.
Draw the Lewis structures for each of the following ions or molecules. Give the number of electrons in
each species. Remember to enclose ions in square brackets with the charge as a superscript outside the right
bracket.
(a) Br 20
(c) BrF 3
(e) PCI 4*
(b) IOF 3 (I is the central atom)
(d) ASF 3
#6. Consider the Lewis structure below where X is an element from the third period (Na-Ar).
(a) Identify the central atom, X, when n = - -1. (b) Determine the formal charge on X. (c) Draw a
Lewis structure so that the formal charge on X is equal to +1.
:Ö:
[+]
n-
Chapter 3 Solutions
Introduction To General, Organic, And Biochemistry