chap 2

Question 1

Valence Bond Model h2

Answer 1

in-phase overlap of two half-filled hydrogen 1s orbitals

Question 2

Antibonding orbitals (*) are :higher in_____ than atomic orbitals, with_____between the bonding nuclei

Answer 2

energy, nodes

Question 3

Bonding orbitals:lower in _____ than antibonding orbitals, with significant _____ between the bonding nuclei

Answer 3

energy, density

Question 4

_ s orbital and _ p orbitals combine to form 4 equivalent,…. anda a ________ shape

Answer 4

1,3 unsymmetrical, tetrahedral orbitals (sppp = sp3)

Question 5

• sp2 hybrid orbitals: _ s orbital combines with _p orbitals, giving 3 orbitals and a ______ shape

Answer 5

2, 2, (spp = sp2) • sp2 orbitals are in a plane