Ions
Aluminum Chloride is an ionic compound with the chemical formula AlCl3 What does the 3 tell you?
What is there are three chloride ions for every aluminum ion
A combination of symbols that show the ratio of elements in a compound
What is a chemical formula
In what state of matter do ions conduct electricity?
What is liquid. The ions in solid crystals are Held rigidly in place and cannot move. If the ions cannot move there is no current.
A molecular compound is
What is a compound that is composed of covalent molecules
What is a molecule
What is a neutral group of atoms joined by covalent bonds
When an atom loses an electron it becomes a_______
Cation or a positive ion
What is the chemical name of CaF2
What is Calcium Flouride
The attraction of a positive and negative ion results in a___________________________
What is an ionic bond
When electrons are ___________________between two atoms, a covalent bond is formed
What is shared
Molecules that contain two polar bonds are generally ________
What is polar
An ionic bond is__________
What is the attraction of oppositely charged ions
Name this compound Na2CO3
What is Sodium Carbonate
Identify the property of Ionic bonds.
1) They have low melting points
2) They have low boiling points
3) They form hard, brittle crystals with characteristic shapes.
4) They contain no charges
What is they form hard, brittle crystals with characteristic shapes.
What is a nonpolar bond
What is a covalent bond in which electrons are equally shared
A chemical bond that is formed when two atoms share electrons is called
What is a covalent bond
Ions that are made of more then one atom are examples of _______
What is polyatomic ions
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
Ionic compounds are electrically ___________
What is neutral
Which is a property shared by most molecular compounds?
What is low melting points
What is a double bond?
What is two pairs of electrons that are shared between two atoms
When an atom gains an electron it becomes a
What is an anion or a negative ion
Hydroxide(OH-) and Cyanide(CN-) are examples of _______
What is polyatomic ions
What are the two properties of Ionic materials?
What is 1)Lattice structure in the solid state 2)High Melting Points
What are three properties of molecular compounds
What is low melting points, low boiling point, and poor conductivity
A covalent bond in which electrons are shared unequally is called
What is Polar