Concept explainers
(a)
Interpretation:
The number of electron pairs of a phosphorus atom in
Concept Introduction:
Electron pairs comprise of double electrons with different spins present in the same molecular orbital. There are two types of electron pair, one is lone pair which refers to the pair of electrons that is not shared in the covalent bond and is sometimes called unshared pair of electrons and the other is bond pair which refers to the pair of electrons that are mutually shared with other atoms through a covalent bond.
Lone pair involves two electrons of similar atoms that occupy same molecular orbital and bond pair includes two electrons of different atom in different orbitals and forms pi or sigma bond.
(b)
Interpretation:
The number of electron pairs of iodine atom in
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
The number of electron pairs of a phosphorus atom in
Concept Introduction:
Refer to part (a).
(d)
Interpretation:
The number of electron pairs of phosphorus atom in
Concept Introduction:
Refer to part (a).
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CHEM PRINCIPLES LL W/ACHIEVE ONE-SEM
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- Predict whether the bonds in the following compounds are ionic or covalent: (a) NaI (sodium iodide); (b) H 2O 2 (hydrogen peroxide).arrow_forward5. (i) Provide possible resonance structure, (ii) evaluate the resonance structures with formal charge to identify the best structure, (iii) provide the resonance hybrid, the (iv) molecular geometry, and (v) discuss the bond angles. ClO, PO, 3-arrow_forwardWe have just arrived at a bonding description for the formaldehydemolecule. Which of the following statements about themolecule is or are true?(i) Two of the electrons in the molecule are used to make the pbond in the molecule.(ii) Six of the electrons in the molecule are used to make the sbonds in the molecule.(iii) The C¬O bond length in formaldehyde should be shorterthan that in methanol, H3COH.(a) Only one of the statements is true.(b) Statements (i) and (ii) are true.(c) Statements (i) and (iii) are true.(d) Statements (ii) and (iii) are true.(e) All three statements are true.arrow_forward
- 2.arrow_forwardFrom their Lewis structures, determine the number of sand π bonds in each of the following molecules or ions:(a) CO2; (b) cyanogen,(CN2); (c) formaldehyde, H2CO;(d) formic acid, HCOOH, which has one H and two O atomsattached to C.arrow_forwardDraw the Lewis structure with lowest formal charges, and determine the charge of each atom in (a) IF₅; (b) AlH₄⁻arrow_forward
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