Module 2 need to know

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Last updated 2:01 AM on 7/6/26
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4 Terms

1
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Types of bonds

  1. ionic

  2. non-polar covalent bond

  3. Polar covalent bond

2
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Electronegativity across the periodic table

increases across a period, decreases down a group

3
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Polarity of a bond

little polarity - similar electronegativity

polar bond - different electronegativity

ionic bond - very different electronegativity

4
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electronegativity differnce values

<0.4 - Nonpolar covalent

0.4-1.6 - polar covalent

>2.0 - ionic

1.5-2.0 - Ionic if a metal involved, polar covalent if only non-metals are involved