Concept explainers
Interpretation:
The two reasonable Lewis structures corresponding to the formula
Concept introduction:
The Lewis structure shows the connectivity between atoms by identifying the lone pairs of electrons in a compound. Lewis structures are also called Lewis dot structures. The valence electrons around an atom are shown by dots. Bonds between atoms are shown by lines and the lone pair of electrons is shown by a pair of dots.
The rules to draw Lewis structure are given as,
• Determine the electronegativity and the number of valence electrons contributed by each atom.
• Generally, the lowest electronegativity atom is the central atom.
• Write the skeleton structure of the molecule.
• Two valence electrons are used to form a bond in skeleton structure between the central and outer atoms.
• Satisfy the octets of each atom by distributing the valence electrons as nonbonding electrons. It is better to start with the outermost atoms.
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Organic Chemistry
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- Consider the pyrosulfate ion, S2O72-. It has no sulfur–sulfur nor oxygen–oxygen bonds. (a) Write a Lewis structure for the pyrosulfate ion using only single bonds. (b) What is the formal charge on the sulfur atoms for the Lewis structure you drew in part (a)? (c) Write another Lewis structure using six bonds and two O—S bonds. (d) What is the formal charge on each atom for the structure you drew in part (c)?arrow_forwardWrite Lewis structures for these ions. Show all valence electrons and all formal charges. (a) Amide ion, NH2 (b) Bicarbonate ion, HCO3 (c) Carbonate ion, CO32 (d) Nitrate ion, NO3 (e) Formate ion, HCOO (f) Acetate ion, CH3COOarrow_forward
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