CHEM 1A Lecture : Electronegativity.docx
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CHEM 1A Full Course Notes
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Not as many important exceptions, mostly involving the d block. Electronegativity and electron affinity o atoms are electronegative. Both involve ability of an atom to _______________ Electronegativity is that ability while _________, attracts shared ______________ Electron affinity is that ability of an _______________. eg. cl + e. Inert pair effecttendency of heavier atoms to form ions with a difference in charge of two. Diagonal bands going down and right have similar properties. Look at radii and ionization energies and explain. Understand why the groups in general form certain ions. Understand why trends occur including reactivity in section 1. 21. What follows is a smatterering of interesting aspects of elements i think is pertinent to real life. Smallest element with same valence electron structure as carbon. Probably not as likely as scifi makes it out to be. Doesn"t make double or triple bonds, severely limiting chemistry. Si chains with h are unstable in water.