For each statement, indicate whether it is true or false. (a) Inorder to make a covalent bond, the orbitals on each atom inthe bond must overlap. (b) A p orbital on one atom cannotmake a bond to an s orbital on another atom. (c) Lone pairsof electrons on an atom in a molecule influence the shape ofa molecule. (d) The 1s orbital has a nodal plane. (e) The 2porbital has a nodal plane.

1. For each molecular geometry, give the number of total electron pairs, the number of bonding pairs and the number of lone pairs on the central atom. (a) (b) (c) 2. For the following species provide the Lewis structure and make a 3D sketch showing estimated bond angles. Determine the polarity of each molecular and draw the dipole. a) SF4 b) KrF4 3. Determine the 3D structure of the molecule of formula C2H4O (H3CCHO). Indicate the geometry around each "central" atom and estimate bond angles. Representing Molecular Geometries on Paper X-A-X XX Linear Trigonal planar Bent Tetrahedral Trigonal pyramidal Trigonal bipyramidal Seesaw Octahedral Square planar

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1. Draw the Lewis structures for each of the following ions or molecules. For each, give (i) the molecular shape, (ii) the electron pair geometry at the central atom, and (iii) the hybridization of the central atom. (a) POF3 (b) XeO₂F3+ (c) BrCl₂ (d) N3 (the central atom is N; two other N's are bonded to it) (e) PF3

(a) Use the VSEPR theory to predict the structure of theNNO molecule.(b) The substance NNO has a small dipole moment.Which end of the molecule is more likely to be thepositive end, based only on electronegativity?