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Electronegativity

SCH3U1 - 02 Unit 1 : Introduction to Chemistry By: Mandy Chan, Claudinne Naidas, Rowena Li, Mariam Youssab
by

Mariam Youssab

on 15 September 2011

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Transcript of Electronegativity

Trends... Bonds ELECTRONEGATIVITY ELECTRONEGATIVITY
DIFFERENCES Definition A quantitative measure of the
electron-attracting ability of the
atoms in a molecule. Our definition ACROSS A PERIOD: Electronegativity increases DOWN A GROUP: Electronegativity
decreases Ionic Polar Covalent Bond Covalent non-metal + non-metal How much an atom will 'pull' on the electrons it is sharing in a bond. metal + non-metal Ex. F Ex. NaCl 2 Ex. CO What is ? why are you guys so meaaaaan to me 100% covalent '100%' ionic ionic very polar covalent polar covalent slightly polar covalent Bonding Continuum NaF? Na: 0.9 F: 4.0 EN Difference: 3.1 Cl ? 2 Cl: 3.0 Cl: 3.0 EN Difference: 0 MgS? Mg: 1.2 EN Difference: 1.3 S: 2.5 Thanks
for
listening! Wrap up: Electronegativity is a measure of how well an atom attracts electrons in a bond
In the periodic table, electronegativity increases from left to right and decreases from top to bottom
Electronegativity differences are used to determine the type of bond elements have on the bonding continuum By: Mandy Chan, Rowena Li,
Claudinne Naidas, Mariam Youssab youtube.com/baconwrappedfigs coolguy69 lives in la maison de verre avec Perry le Platypus Bonding Continuum H He Ca K Cl P Be Li F Se C Ar O N B Mg Si Al Na Ne
Full transcript