Final Review Flashcards
(25 cards)
What is the electro negativity difference for a nonpolar covalent bond
<0.5
What is the electro negativity difference for a polar covalent bond
0.5-1.7
What is the electro negativity difference for an ionic bond
> 2.0
What are some properties of covalent bonds
Soft, low mealting and boiling points, poor conductors of electricity
What are some properties of ionic bond
Many are crystals, strong bonds, high melting and boiling points, hard, brittle, good conductors of electricity
What does VSEPR stand for
Valence Shell Electron Pair Repulsion
Covalent bonds share or transfer
Share
Ionic bonds share of transfer
Transfer
What is the bond angle of a linear model
180
If there are two electron domains what are the options for shape
Linear
If there are two electron domains what are the options for shape
Linear
If there are three electron domains what are the options for shape
Bent, trigonal planar
What are the bond angles for trigonal planar
120
If there are four electron domains what are the options for shape
Tetrahedral, trigonal pyramid, bent
What are the tetrahedral bond angles
109.5
What is the bond angle in a trigonal pyramidal
<109.5
What element is the most electronegative
Fluorine (F)
What element is the most electronegative
Fluorine (F)
What is the periodic trend for electronegativy
The higher up and the more right is more electronegative
Closer to F
What element has the largest Atomic radius
Francium
Electronegativity
The tendency of an atom to attract electrons in a molecule
Ionization energy
Amount of energy it takes to remove an electron
Ionization energy trend
He is the largest gets closer to Nobel gases its higher
Electron affinity
Amount of energy released when an electron is added to an atom
