Lacey_Che131_S2012_Lect-27s

Lacey_Che131_S2012_Lect-27s - Recap Lec Lec-27: Resonance...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
ec- 7: Resonance & Formal Charge Lec 27: Resonance & Formal Charge Roy A. Lacey, Stony Brook University; Che 131, Spring 2012 1 Recap Roy A. Lacey, Stony Brook University; Che 131, Spring 2012 2 Drawing Lewis Structures ydrogen and the halogens bond once Additional handy rules ± Hydrogen and the halogens bond once. ± The oxygen group bonds twice. ± The nitrogen group bonds three times. So does boron. he carbon group bonds four times ± The carbon group bonds four times. Roy A. Lacey, Stony Brook University; Che 131, Spring 2012 3 Drawing Lewis Structures NO 2 + #valence electrons = 16 i) Draw skeletal structure ii) Satisfy octet rule [] ONO + == Roy A. Lacey, Stony Brook University; Che 131, Spring 2012 4
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Bond Types Electrons are shared equally only in pure covalent bonds Roy A. Lacey, Stony Brook University; Che 131, Spring 2012 5 qyy p Use electronegativity difference to characterize unequal sharing Electronegativity crease Increase se Increa Note the periodic trend of electronegativity Roy A. Lacey, Stony Brook University; Che 131, Spring 2012 6 Resonance Structures esonance is the condition shown by a O 3 Resonance is the condition shown by a molecule when the valence electrons
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 5

Lacey_Che131_S2012_Lect-27s - Recap Lec Lec-27: Resonance...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online