Ions
Chemical Formulas and Names
Properties of Ionic/Covalent Compounds
Molecular Compounds
Covalent Bonds
100
Magnessium bromide is an ionic compound with the chemical formula AlCl3 What does the 3 tell you?
What is there are three chlorine ions for every aluminum ion
100
A combination of symbols that show the ratio of elements in a compound
What is chemical formula
100
In what state of matter do ions conduct electricicty?
What is liquid The ions in soild cyrstals are tightly packedand cannot move. If the ions cannot move there is no current.
100
A molecular compound is
What is a compound that is composed of molecules
100
what is a molecule
What is a neutral group of atoms joined by covalent bonds
200
When an atom loses an electron it becomes a_______
What is positive ion
200
What is the chemical name of CaF2
What is Calcium Flouride
200
The attraction of a postive and negative ion results in a___________________________
What is ionic bond
200
When electrons are ___________________between two atoms, a covalent bond is formed
What is shared
200
Molecules that contain two polar bonds are______________
What is sometimes polar
300
An ionic bond is__________
What is the attraction of oppositely charged ions
300
Name this compound NA2CO3 2 and 3 are a subscript
What is Sodium Carbonate
300
Identify the property of Ionic bonds. 1)They have low melting points 2)They have low boiling points 3)The form hard, brittle crystals with characteristic shape 4)They contain no charges
What is they form hard, brittle crystals with characteristic shape
300
what is a nonpolar bond
What is a covalent bond in which electrons are equally shared
300
A chemical bond that is formed when two atoms share electrons is called
What is covalent bond
400
Ions that are made of more then one atom are examples of _______
What is polyatomic ions
400
When ions having a positive charge form bonds with ions having a negative charge, the charge on the resulting compound is
What is Neutral or Zero
400
Ionic compounds are electrically ___________
What is neutral
400
Which is a property shared by most molecular compounds?
What is low melting points
400
What is a double bond?
What is two pairs of electrons that are shaired between two atoms
500
When an atom gains an electron it becomes a
What is negative ion
500
Hydroxide(OH-) and Cyanide(CN-) are examples of _______
What is polyatomic ions
500
What are the three properties of Ionic bonds?
What is 1)Ionic crystals 2)High Melting Points 3)Electrical Conductivity
500
What are three properties of molecular compounds
What is low melting points, low boiling point, and poor conductivity
500
A covalent bond in which electrons are shared unequally is called
What is Polar
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