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HH  2 1s  1s +  1s ) 2  1s -  1s ) 2 Svigrúm fyrir/ space for 2 x 2e - Svigrúm fyrir/ space for 2 x 2e - 2 x atómsvigrúm 2x AO 2 x sameindasvigrúm.

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Presentation on theme: "HH  2 1s  1s +  1s ) 2  1s -  1s ) 2 Svigrúm fyrir/ space for 2 x 2e - Svigrúm fyrir/ space for 2 x 2e - 2 x atómsvigrúm 2x AO 2 x sameindasvigrúm."— Presentation transcript:

1 HH  2 1s  1s +  1s ) 2  1s -  1s ) 2 Svigrúm fyrir/ space for 2 x 2e - Svigrúm fyrir/ space for 2 x 2e - 2 x atómsvigrúm 2x AO 2 x sameindasvigrúm 2x MO

2  1s +  1s ) 2  1s -  1s ) 2 + - - - - - - - - + attraction forces, F - Attraction forces, F - Repulsion forces, F + Attraction forces, F - Repulsion- force, F + Netto Repulsion force: antibonding Netto Attraction force: bonding: CHEMICAL BOND - - - - ++

3 2x :::: n = 1 n = 2 n = 3 :::: E :::: :::: :::: n = 1 n = 2 n = 3 :::: E s  Molecular energies(orbitals) quantized

4 A, AB......Ground configuration / ground state A*, AB*...... energetic configurations / excited states

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