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Chemical Bonding (Ionic Bonding (Properties (Oppositely charged ions are…
Chemical Bonding
Ionic Bonding
An ionic bond
The force of attraction between oppositely charged ions in a compound
Ion
A charged atom or group of atoms
Metals tend to want to lose electrons
Non-metals usually want to gain electrons
Two examples
Magnesium and oxygen react
Sodium and Chlorine react
Properties
Oppositely charged ions are attracted to each other and are held together by strong bonds
Usually solid with high melting points
They conduct electricity when melted or when dissolved in water
Solids
Soluble in water
What is Chemical Bonding?
There are two types of bonding
Ionic Bonding
This occurs when one atom loses electrons and another atom gains electrons
Covalent Bonding
This occurs when atoms share electrons
This is when two or more chemicals bond together to make there outer shells hole
Electron shell rules
Electrons are found in shells or orbits
The shells nearest the nucleus are filled first
The first shell can hold up to 2 electrons
The second and third shells can hold up to 8 electrons
Atoms with full outer shell of electrons are stable and do not react
In most atoms they don't have a full outer shell so they want to full the outer shell
Covalent Bonding
Formed when electrons are shared between non-metal atoms
Examples
Hydrogen (H2)
Oxygen (O2)
Water (H2O)
Methane (CH4
Properties
Liquids or gases
Low melting and boiling points
Insoluble water
Do not conduct electricity