Show:
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 OR the smallest part of a covalent bond.
200
When an atom loses an electron it becomes a_______
What is positive ion or cation
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
Electrons in a covalent bond are ________.
What is shared
300
An ionic bond is__________
What is the attraction of oppositely charged ions OR a bond between a metal and a nonmetal OR a bond between a cation and an anion
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 characteristics shape 4)They contian no charges
What is they form hard, britle crystals with characteristics shape
300
what is a nonpolar bond
What is a covalent bond in which electrons are equally shared
300
Why do covalent bonds share electrons?
So that both atoms are stable with 8 valence electrons
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 do we use to show how many of each atom are in the bond
What are prefixes
500
When an atom gains an electron it becomes a
What is negative ion OR anion
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 enequally is called
What is Polar