Ions And Formations Flashcards
What is the formation of ions
The positive ions are formed when an atom losses one or more electrons
Negative ions formed the an atom gain one or more electrons.
The charge on the gas depends on the number of elements lost or gained.
For most metal ions the number of positive charges is the same as the group number for example, aluminum is in group Ill, so its AL 3+
For most non-metal ions, the negative charges is eight minus the group number for examples phosphorus in group V so the phosphide ions is p3-
Forming the nobe gas configurations
When metal combine with non metal the electron of the outer shell metal atom transferred completely to a non-metal atom.
Each non-metal usually gain enough electron to fill outer shell.
Each metal usually losses its outer shell electron.
This formed metal non metal ) end up with the electron arrangement to the nearest of the nobe gas congîturation
The stronger Force attraction between oppositely charged ions Results in ionic bands.
The sodium atom lost one atom the ions has the election arrangement neon.
The chlorine atom has gained the electron from sodium Chloride ions has the electron arrangement of argon
What is three types of chemical formula
A molecular Formula grues the number of atoms for each particular elements in the molecule compound example H Br, CL2, H2O, C2H60
The structural formula show now the atom are bond in a molecule. Simplified structural formula do not show any band expect double triple bonds. displayed formulae show now bonds are arranged.
The empirical formula give whole number ratio of an atom in a compounds. For example empirical formula C2 H6, is CH3-
What is ionic crystal
The regular structure of a crystal due to regular packing of particular in a crystal.
The regular repeating arrangement of ions atoms or molecule, is called crystal lattice.
What is ionic lattice
The ionic lattice there is usually three dimension arrangement alternating positive and negative pons. This is sometime called ionic structure
The ionic lattice the electrostatic attractive force between the positive and negative ions act on all directions.
What are some use ionic compound
The solubility of sodium hydroxide make it use for
Manufacturing chlorine and sodium hydroxide by electrolysis at aqueous solution.
Spreading on roads in cold countries to reduce the formation of ice.
The high boiling point of ionic compound. Such as magnesium oxide, make them for fumace lining.
What is the properties of iodine and sulfur can be elated to the structure
They have low melting points and force between the molecules are weak. does not need much energy to overcome those forces and separate the molecules.
They are soft. When scratched, it does not take much energy to overcome weak forces between molecules.
They do not dissolve in water because the water molecules cannot form stronger bonds for the molecules to separate them for each other.
The do not conduct electricity when a said or molten. This is because neither electrons can move.
What is a Gaints molecular structure
Gaunt molecular structure has a three dimension network of colavent bonds.
Diamond and graphite are both giant molecular structure made of carbon atom.
Difference crystalline or molecular form in element are called allotropes.
in a diamond each carbon atom form four colavent bands with other carbon atom.
Each carbon atom can be emerged at the center of a trerrahedions .
In network of trerrahedsions extend almost unbroken throughout the structure.
In graphite the atoms are arranged and layer Hoxagon
