Question

Decide whether the Lewis structure proposed for each molecule is reasonable or not. molecule proposed Lewis structure Is this a reasonable structure? If not, why not? O3 : O = O - O : .. .. .. .. Yes, it's a reasonable structure. No, the total number of valence electrons is wrong. The correct number is: No, some atoms have the wrong number of electrons around them. The symbols of the problem atoms are: ClO3- [ : O - Cl - O : ]- || : O : .. .. .. .. Yes, it's a reasonable structure. No, the total number of valence electrons is wrong. The correct number is: No, some atoms have the wrong number of electrons around them. The symbols of the problem atoms are: BeH2 H — Be — H Yes, it's a reasonable structure. No, the total number of valence electrons is wrong. The correct number is: No, some atoms have the wrong number of electrons around them. The symbols of the problem atoms are: * If two or more atoms have the wrong number of valence electrons around them, just enter the chemical symbol for the atom as many times as necessary. For example, if two oxygen atoms have the wrong number of electrons around them, enter the symbol O twice.

          Decide whether the Lewis structure proposed for each molecule is reasonable or not.
molecule proposed Lewis structure
Is this a reasonable structure?
If not, why not?
O3
: O = O - O :
..
..
..
..
Yes, it's a reasonable structure.
No, the total number of valence electrons is wrong.
The correct number is:
No, some atoms have the wrong number of electrons around them.
The symbols of the problem atoms are:
ClO3-
[ : O - Cl - O : ]-
||
: O :
..
..
..
..
Yes, it's a reasonable structure.
No, the total number of valence electrons is wrong.
The correct number is:
No, some atoms have the wrong number of electrons around them.
The symbols of the problem atoms are:
BeH2
H — Be — H
Yes, it's a reasonable structure.
No, the total number of valence electrons is wrong.
The correct number is:
No, some atoms have the wrong number of electrons around them.
The symbols of the problem atoms are:
* If two or more atoms have the wrong number of valence electrons around them, just enter the chemical symbol for the atom as many times as necessary. For example, if two oxygen atoms have the wrong number of electrons around them, enter the symbol O twice.

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Decide whether the Lewis structure proposed for each molecule is reasonable or not.
molecule proposed Lewis structure
Is this a reasonable structure?
If not, why not?
O3
: O = O - O :
..
..
..
..
Yes, it's a reasonable structure.
No, the total number of valence electrons is wrong.
The correct number is:
No, some atoms have the wrong number of electrons around them.
The symbols of the problem atoms are:
ClO3-
[ : O - Cl - O : ]-
||
: O :
..
..
..
..
Yes, it's a reasonable structure.
No, the total number of valence electrons is wrong.
The correct number is:
No, some atoms have the wrong number of electrons around them.
The symbols of the problem atoms are:
BeH2
H — Be — H
Yes, it's a reasonable structure.
No, the total number of valence electrons is wrong.
The correct number is:
No, some atoms have the wrong number of electrons around them.
The symbols of the problem atoms are:
* If two or more atoms have the wrong number of valence electrons around them, just enter the chemical symbol for the atom as many times as necessary. For example, if two oxygen atoms have the wrong number of electrons around them, enter the symbol O twice.

Added by Tom-S M.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Jennifer Hudspeth

12/14/2022

Step 1

Ozone has a total of 18 valence electrons (6 electrons from each of the 3 oxygen atoms). The proposed Lewis structure shows a double bond between two oxygen atoms and a single bond between the other two, with each oxygen atom having a full octet. This is a Show more…

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Decide whether the Lewis structure proposed for each molecule is reasonable or not. molecule proposed Lewis structure Is this a reasonable structure? If not, why not? Yes, it's a reasonable structure. No, the total number of valence electrons is wrong. The correct number is: No, some atoms have the wrong number of electrons around them. The symbols of the problem atoms are: * If two or more atoms have the wrong number of valence electrons around them, just enter the chemical symbol for the atom as many times as necessary. For example, if two oxygen atoms have the wrong number of electrons around them, enter the symbol O twice.

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Transcript

00:02 Right there.

00:03 For any lewis structure, there have to be two things that are satisfied.

00:08 There has to be a correct number of valence electrons based upon the number of valence electrons that each atom brings to the molecule.

00:20 And the second thing is, is that the octet rule, or some elements are exceptions, must be followed.

00:40 All right.

00:41 So for each of these structures, we are going to look at both of these requirements.

00:46 To see if these proposed structures are possible, or are good ideas.

00:52 So our first one is 03.

00:53 Oxygen is in group 6 of the periodic table, so each of these oxygens has six valence electrons.

01:00 Remember the number of valence electrons corresponds to the group number for the main group elements.

01:06 Therefore, we have 18 valence electrons.

01:12 As we look at the structure that is proposed, we see that we have two, four, six, 6, 8, 10, 12, 14, 16, and 18.

01:29 All right, so that looks good.

01:31 We have the correct number of valence electrons.

01:35 Let's see if the octet rule is satisfied.

01:38 Well, our first oxygen here has two lone pairs and two bonded pairs for a total of eight.

01:44 The central oxygen has three bonded pairs and one lone pair for a total of eight.

01:50 And the one on the right has a single bond and three loan pairs.

01:53 Right, so this is a reasonable structure because we've satisfied both of those requirements.

02:05 Correct number of valence electrons, in other words, dots, and the octet rule has been satisfied.

02:12 All right, let's look at our next one here.

02:15 Next one, we have c -l -o -3 negative.

02:20 So chlorine is a halogen.

02:22 It has seven valence electrons.

02:24 Each oxygen, we just saw that in the first one, each oxygen has six.

02:28 And then that negative charge means that there's one extra electron in this structure.

02:34 All right.

02:35 So 7 plus 18 is 25 plus 1 is 26 valence electrons.

02:44 As we count up the electrons here, we see there's 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26.

03:02 So we have the correct number of electrons...

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