" ATOMIC STRUCTURE "

Electron & Nucleus

Electron Shell &
Electron Configration

Atomic Orbitals &
Hydrogen Atom

Atomic Structure
( Movie for students )

Atomic orbitals
( Advanced contents )

3D Viewer

" CHEMICAL BONDING & MOLECULAR STRUCTURE"

~ Hybrid Orbitals (Valence Bond) ~

s-p hybridization

π , σ , Banana Bonds

Hybrid orbitals
( Movie for students )

~ Molecular Orbitals ~

H2

N2

H2O

CH4

C2H2

C2H4

C2H6

" MOLECULAR INTERACTION "

~ hydrogen bonding & ionic bonding ~

water trimer ( hydrogen bonding )

Na2Cl2 ( ionic bonding )

water trimer ( Advanced contents )

beta-D-Glucose

Thymine - Adenine

Cytosine - Guanine

~ Noncovalent interactions ~

surfactant-like molecule

" CHEMICAL REACTION "

Substitution Reaction ( SN2 )

Addition Reaction
( acid-catalyzed hydration )

~ neutralization reactions ~

HCl + H2O + NaOH

HCl + 6 H2O + NaOH

CH3COOH + NH3

~ Inorganic Chemistry ~

( Two outermost electrons are visualized. )

( Al + water )
Al(H2O)3 + (H2O)3Al
-> Al2(OH)2(H2O)6 + H2

( Al + HCl )
Al2(H2O)11 + HCl
-> Al+Cl-•Al+OH-•(H2O)10 + H2

( Al + OH- )
AlOH(H2O)- + Al(H2O)7
-> Al(OH)2- + AlOH(H2O)6 + H2

~ Organic Chemistry ~

( Two outermost electrons are visualized. )

Isomarization of α-D-Glucose

Isomarization of α-D-Glucose with Water

Hydroxide-Ion-Promoted Ester Hydrolysis

CH3COOCH3 + H2O(OH-) -> CH3COO- + CH3OH + OH-

Fischer esterification reaction

CH3COOH + CH3OH -(HCl)-> CH3COOCH3 + H2O