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Ionic and Metallic Bonds
Terms in this set (34)
Atoms are attached to eachother by
Chemical bonds are made by the attraction between
valence electrons and protons in different atoms
Three kinds of chemical bonds
Metallic, ionic, and covalent
To conduct electricity, a substance must have
charges that can move
Metallic bonds occur between
two or more metal atoms
What do metal atoms want to do
lose electrons to get a noble gas configuration
Valence electrons of metal atoms are held
When metal atoms lose valence electrons, they become
After valence electrons in a metal leave, they
go from one positive ion to another creating a sea of electrons
Properties of a metal in a metallic bond
high luster, ductile/malleable, conducts heat and electricity (NO OCTETS)
What is an alloy?
A mixture of metals
Properties of an actual metallic bond
Not soluble in water, high melting/boiling point, and have a crystal lattice
How does a metallic bond explain the shininess of metals?
Light wave's frequency causes the outer electrons to oscillate, reflection of light at the same frequency causes the shininess.
How does a metallic bond explain the high electric conductivity of metals?
The sea of electrons pass energy through another electron, free movement
How does a metallic bond explain the high heat conductivity of metals?
Heat produces high energy, electrons give up their energy to less heated elements
What makes a metal malleable and ductile?
Latuses will reshape and rows will separate and slip past eachother. The metallic bond is strong enough to not break apart easily.
Atoms become ions by
gaining or losing electrons
Metals lose electrons to form positive ions called cations.
Nonmetals gain electrons to form negative ions called anions.
Electron dot diagrams
Just know how to do it lol.
How to find number of valence electrons
Group number lolololol ****ing stupid reasoning doesnt explain shit. Represents s and p sublevels.
Every atom wants to have 8 valence electrons (except H and He, who want 2)
What holds ionic bonds together?
The opposite charges of two ions (opposites attract=electrostatic forces)
Ionic bonds are formed between
cations and anions, metal and nonmetals
What are ionic compounds held together with?
Essence of an ionic bond
It is the transfer of electrons
Essence of a metallic bond
There is a sea of electrons
Properties of an ionic bond
Solid at room temperature and form crystals
In an ionic compound, the sum of all charges must be
The total number of positive ions and negative ions must equal
Short cut to finding the formula of an ionic compound
take the absolute value of the charge of each ion and make it a subscript of the other ion, the subscripts indicate the number of atoms of each element in the compound
One atom ions (Ex: F, K, Mg)
Ions with many atoms (Ex: SO, NO) which are covalently bonded together with a charge dispersed throughout), need parenthesis around polyatomic ion (Ex: Mg(OHv2))
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