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243 votes

3 answers

35k views

Why is gold golden?

tschoppi

10.6k

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178 votes

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162k views

Can an atom have more than 8 valence electrons? If not, why is 8 the limit?

physical-chemistry electrons electronic-configuration valence-bond-theory

moonw

1,897

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49 votes

2 answers

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6k views

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jheindel

12.6k

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33 votes

1 answer

3k views

Is there an energy cost associated with flipping the spin of an electron?

physical-chemistry computational-chemistry electronic-configuration quantum-chemistry

LordStryker

4,559

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28 votes

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Suggest methods and basis sets for a variety of systems

computational-chemistry quantum-chemistry theoretical-chemistry density-functional-theory

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jheindel

12.6k

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8 votes

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user122143

81

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8 votes

1 answer

4k views

Understanding group theory easily and quickly [closed]

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user34577

91

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7 votes

2 answers

5k views

Which one, Mulliken charge distribution and NBO, is more reliable?

physical-chemistry computational-chemistry molecular-orbital-theory

OhLook

756

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5 votes

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7k views

Molecular term symbols for excited state oxygen

electronic-configuration group-theory

218

455

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4 votes

2 answers

2k views

When is donation into an anti-bonding MO stabilising?

organic-chemistry molecular-orbital-theory

Tan Yong Boon

9,324

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4 votes

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471 views

Why does NH3 cause pairing in case of some metal complexes and doesn't in case of others?

coordination-compounds valence-bond-theory

Ashwin Singh

73

asked May 21, 2021 at 7:50

3 votes

2 answers

852 views

Deriving the irreps of the d-orbitals under C3 and S6 operations in octahedral symmetry

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inorganic-chemistry

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Why is gold golden?

Can an atom have more than 8 valence electrons? If not, why is 8 the limit?

Why is an S-S bond stronger than an O-O bond?

Are the lone pairs in water equivalent?

Is there an energy cost associated with flipping the spin of an electron?

Suggest methods and basis sets for a variety of systems

Are the canonical orbitals of Hartree-Fock also the natural orbitals?

After a unitary transformation, is Koopmans' theorem still valid?

Shape of nickel tetracarbonyl

Understanding group theory easily and quickly [closed]

Which one, Mulliken charge distribution and NBO, is more reliable?

Molecular term symbols for excited state oxygen

When is donation into an anti-bonding MO stabilising?

Why does NH3 cause pairing in case of some metal complexes and doesn't in case of others?

Deriving the irreps of the d-orbitals under C3 and S6 operations in octahedral symmetry

Why does copper have a high enthalpy of atomisation when it has a half filled d sub shell? [closed]