Unit 4 Chemistry Bonds
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30 Terms
ionic, Metallic, covalent
what are the 3 types of bonds
8 valence electrons
to be stable how many atoms does an atom need
a force that holds atoms together
what is a Chemical bond
Covalent
what element is made up of 2 non-metals
shared
what are the electrons in a covalent bond doing
weakest
how strong is the covalent bond
solid, liquid, or gas
what is a covalent bonds state of matter at room temperature.
low
what is the melting point for covalent
molecule
what is a covalent bond also called
two metals
metallic is a bond between what to elements
Sea of electrons
In a metallic bond what are the electrons doing
medium
what is a metallic bonds strength
Solid (except mercury)
what is metallics state of matter at room temperature
medium
what is metallics boiling point
alloy
what is a metallic bond also called
one metal and one non-metal
what is an ionic bond made of out
transferred
in an ionic bond what are the electrons doing
strongest
what is a ionic bonds strength
solid
what is an ionics state of matter at room temperature
high
what is an ionic boiling point
Salt formula unit
what is an ionic bond also called
dots
what is used to represent valence electrons
no
do dots want to be shared if they have to in the Lewis Dot structure?
an atom is stable when it has 8 valence electrons surrounding it
what does the octet rule state?
hydrogen
what element is stable with only 2 valence electrons
linear and 180 degrees
what is the shape and bond angle of a lewis structure what 2 atoms attached to the central atoms and no lone pairs called?
bent and 104.5 degrees
what is the shape and bond angle of a lewis structure what 2 atoms attached to the central atoms and there are lone pairs?
trigonal planar and 120 degrees
what is the shape and bond angle of a lewis structure what 3 atoms attached to the central atoms and no lone pairs called?
trigonal pyramid and 107 degrees
what is the shape and bond angle of a lewis structure what 3 atoms attached to the central atoms and there are lone pairs?
tetrahedral and 109.5 degrees
what is the shape and bond angle of a lewis structure what 4 atoms attached to the central atoms and no lone pairs called?