The electron configuration is the distribution of electrons of an atom or molecule

Different Rules

1) Aufbau Rule

2) Orbital Notation

3) Energy Shell Notation

4) Half Shell Notation

5) Noble Gas Core Notation

6) Periodic Table Notation

Quantum Number- Define the energy state of an electron.

 

Principal quantum number: n

Allowed values: 1, 2, 3 ………………….   ∞

Defines the size and approximate energy of the orbital.

 

Subsidiary quantum number: l  

Allowed values: l     =   0, 1, 2, 3 ………………. (n-1)

Defines the shape of the orbital and the fine details of the energy.

 

Magnetic quantum number: m_l

Allowed values: -l  ………… 0 ………… +l

Defines the allowed number of orbitals of a particular size (determined by n), a particular shape (determined by l) and a particular energy (determined by n and ltogether) which differ principally in their orientation in space.

 

Spin quantum number: s

Allowed values: ±¹⁄₂

PeriodicTrends 

Lewis Dot Structures- show the symbol of the element surrounded byt the valence electrons represented by dots.

Covalent Bonds- two atoms sharing on one electron each.

2 types of Covalent Bonds

Polar Covalent

Non-polar Covalent

Ionic Bond

Molecular Geometry

Linear 

Bent

Trigonal Planar

Tetrehedral

Pyramidal

 

Polyatomic Ions- species (ion) composed of two or more atoms covalently bonded

 

Naming Covalent Compounds

Naming Ionic Compounds

Naming Bases (ends in -OH)

Naming Acids (ends in H-)

Non-oxy Acid      Hydro+non+ic acid

Oxy Acid              H+polyatomic ion+ ite/ate+ acid 

Chemical Formula

Criss Cross Method

 

Solving for oxidation number

 

Percentage Composition

 

submitted to:

Ms. Leonora Tingatinga

 

hope many of you can learn from this!!! :)