Chapter 3 Flashcards
If 2 elements combine to make a compound, and they are far away from each other there is a greater chance of them being?
Polar
Bi represents what in a compound name?
A Hydrogen molecule before the compound
Ionic bonds are between what elements?
Non-metals + Metals
Which compounds require prefixes when naming them?
Covalent Bonds
What structure are Ionic Compounds?
Crystalline
What structure are Covalent Bonds?
Crystalline or amorphous
What is a chemical bond?
The force of attraction between any 2 atoms in a compound.
What are Ionic Bonds?
A transfer of one or more electrons from one atom to another.
What are Covalent Bonds?
A chemical bond that involves the sharing of electron pairs between atoms.
Any bond with Flourine will cause the compound to be…?
Polar
What is electronegativity?
How much an element can attract electrons in a chemical bond.
Which element has the highest Electronegativity?
Fluorine
Bonds between non-metals and non-metals are?
Covalent Bonds
What does the (ic) at the end of a compound mean?
A higher charge
What does (ous) at the end of a compound mean?
A lower charge
What does (ate) at the end of a compound mean?
More oxygen
What does (ite) at the end of a compound mean?
Less oxygen.
Molecules can be unique to which bonds?
Covalent bonds
What are 3 main properties of Ionic Compounds?
- Usually solids
- Higher melting points
- Higher boiling points
What are 3 main properties of Covalent Bonds?
- Can be solids, liquids, and gases.
- Lower melting points
- Lower boiling points
What trend does electronegativity follow?
Up a family, increases left to right
Which metals form cations with varying positive charges?
Transition metals
What is the correct order of bond lengths? (Shortest to longest)
Triple, double, single
Which elements follow the octet rule?
Carbon, Nitrogen, Oxygen, Fluorine
What is an expanded octet?
An element past the 3rd period
What is VSEPR Theory, and what is it used for?
Valence Shell Electron Repulsion Theory. Used to predict the shape of molecules.
What is an Intramolecular Force?
Attractive forces within molecules.
What is an Intermolecular Force?
Attractive forces between molecules.
Symmetry means?
A non- polar bond
Asymmetry means?
A polar bond.
Which bond has high electron affinity, and low electronegativity?
Ionic Bonds
