A structure for lithium aluminum hydride should be determined. Concept Introduction: During the formation of a compound each atom tends to lose, gain or share enough electrons to achieve an electronic configuration having eight valence electrons. This rule is also known as octet rule. The number of electrons present in outermost shell of an atom which are available for bonding are known as valence electrons. For a molecule, total number of valence electrons will be sum of valence electrons of each atom present in the molecule. Bond angles in the molecules can be predicted by using valence shell electron pair repulsion (VSEPR) model. According to this model, the valence electrons of an atom are involved in the formation of single, double or triple bond. The valence electrons can also be unshared and exist as lone pair on atoms. The combination forms a negatively charged region of electron density around a nucleus. Since, like charges do not attract, the region of electron density around a nucleus spread out so that each atom is as far away from each other at different angles.
A structure for lithium aluminum hydride should be determined. Concept Introduction: During the formation of a compound each atom tends to lose, gain or share enough electrons to achieve an electronic configuration having eight valence electrons. This rule is also known as octet rule. The number of electrons present in outermost shell of an atom which are available for bonding are known as valence electrons. For a molecule, total number of valence electrons will be sum of valence electrons of each atom present in the molecule. Bond angles in the molecules can be predicted by using valence shell electron pair repulsion (VSEPR) model. According to this model, the valence electrons of an atom are involved in the formation of single, double or triple bond. The valence electrons can also be unshared and exist as lone pair on atoms. The combination forms a negatively charged region of electron density around a nucleus. Since, like charges do not attract, the region of electron density around a nucleus spread out so that each atom is as far away from each other at different angles.
Solution Summary: The author explains that a structure for lithium aluminum hydride should be determined by using the valence shell electron pair repulsion model.
A structure for lithium aluminum hydride should be determined.
Concept Introduction:
During the formation of a compound each atom tends to lose, gain or share enough electrons to achieve an electronic configuration having eight valence electrons. This rule is also known as octet rule. The number of electrons present in outermost shell of an atom which are available for bonding are known as valence electrons. For a molecule, total number of valence electrons will be sum of valence electrons of each atom present in the molecule. Bond angles in the molecules can be predicted by using valence shell electron pair repulsion (VSEPR) model. According to this model, the valence electrons of an atom are involved in the formation of single, double or triple bond. The valence electrons can also be unshared and exist as lone pair on atoms. The combination forms a negatively charged region of electron density around a nucleus. Since, like charges do not attract, the region of electron density around a nucleus spread out so that each atom is as far away from each other at different angles.
8. The emission spectrum below for a one-electron (hydrogen-like) species in the
gas phase shows all the lines, before they merge together, resulting from
transitions to the ground state from higher energy states. Line A has a
wavelength of 10.8 nm.
BA
Increasing wavelength, \ -
a) What are the upper and lower principal quantum numbers corresponding to
the lines labeled A and B?
b) Identify the one-electron species that exhibits the spectrum.
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Use retrosynthetic analysis to suggest two paths to synthesize 2-methyl-3-hexanol using the Grignard reaction. (Click and drag
the appropriate image to the correct position in the reactions.)
Route 1
Aldehyde 1
or
+98
Aldehyde 2
Route 2
Q6
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Q7
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Q8
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Grignard 1
OH
H3O+
Grignard 2
Answer Bank
Q9
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MgBr
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CH3CH2CH2MgBr
Q10
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Q11
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2-methyl-3-hexanol
CH3CH2MgBr
H
H
о
H
Attempt 3