Question
In: Chemistry
Which of the following is the best Lewis dotstructure for oxygen? a b...
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Expert Solution
• In chemistry, Lewis structure represents a number of electrons present around each atom, as a bonding of electrons as well as a non-bonding of electrons.
• It is also called as the dot structure, which represents a lone pair and a bond pair of electrons in the molecule.
• Lewis structure is used to draw covalently a bonded molecule, as well as coordination compounds.
oThe Lewis structure represents the bonding and lone pair of electrons in the molecule.
oValence electrons are the electrons, which are present in the outermost shell of an atom.
oDots are used to represent the electron position around the atoms and lines, or dot pairs are used to represent the covalent bonds between atoms.
oThe Lewis structure is based on the concept of the octet rule. So, the shared electrons in each atom have 8 electrons in its outer shell.
(A)
The atomic number of oxygen atom (Z) = 8.
The electronic configuration of oxygen 
The valence electrons of oxygen = 6.
The valence electrons for oxygen = 4.
The valence electrons for oxygen = 5.
The valence electrons for oxygen = 5.
The valence electrons for oxygen = 6.
Since there are no bonding electrons in oxygen atom.
The valence electrons for oxygen = 7.
The best Lewis structure for the oxygen atom is given below:
(B)
The atomic number of hydrogen atom = 1.
The electronic configuration of hydrogen 
The valence electrons for hydrogen = 1.
The Lewis structure of hydrogen is given below:
The number of electrons present in the Lewis dot structure for hydrogen is one electron.
(C)
The atomic number of oxygen atom (Z) = 17.
The electronic configuration of oxygen 
The valence electrons of oxygen = 7.
The valence electrons for oxygen = 8.
The valence electrons for oxygen = 6
The valence electrons for oxygen = 6.
The valence electrons for oxygen = 5.
Since there are no bonding electrons in oxygen atom.
The valence electrons for oxygen = 5.
The best Lewis structure for the oxygen atom is given below:
The best Lewis structure for the oxygen atom is given below:
a | |
b | |
c | |
| d |
e | |
f |
The electrons shown in the Lewis dot structure for hydrogen is given below:
The best Lewis structure for the oxygen atom is given below:
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