Ionic Bonds
This describes how ions are held together
what is attraction, or electrostatic forces
This is found on the periodic table and tells us the number of valence electrons
group number
This kind of bonds occurs between
two nonmetals
Carbons single bonded to all the hydrogen atoms possible
Saturated
Moving across the periodic table, EN_______.
Moving down the periodic table, EN________.
increases; decreases
Boiling and melting points are usually...
High
To obtain the structural formula, we must first start with this
Lewis dot structure
Molecular Structure
Describes the arrangement of atoms in a molecule.
Alkynes
Containing at least one triple covalent bond.
Nonpolar; Polar
EN is less than or equal to 0.4; EN is greater than or equal to 0.5
This type of bond occurs between
metals and nonmetals
When forming covalent bonds, this will tell us how many bonds can be formed.
The number of valence electrons needed to obtain a full outer shell.
Molecule
neutral group of atoms held together by covalent bonds.
Properties are dependent upon
Structure of molecule
CO
Polar
Draw an example of two atoms involved in an ionic bond
Lithium fluoride
The octet rule states...
when forming bonds, atoms will tend to gain or lose valence electrons in order to achieve the electron configuration of a noble gas.
Molecular Formula
Indicate how many atoms of each element a substance contains.
Functional Groups
Combination of carbon, hydrogen, nitrogen and oxygen.
NH3
Polar
This is the lowest whole-number ratio between ions in an ionic compound
formula unit
Valence electrons determine
The chemical and reactive properties of atoms.
The state of molecular compounds at room temperature
Liquids or gases.
Ethane versus Propene
-ane indicates alkane, single covalent bonds
-ene indicates alkene, at least one double covalent bond
Chlorine: Cl2