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Beginning in the third energy level, aset of five degenerate orbitals per energy level, higher in energy than s and p orbitals of the same energy level.

 

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Colloid

A heterogeneous mixture in which solute-like particles do not settle out.

Dissociation

In aqueous solution, the process in which a solid ionic compound separates into its ions.

Gas of rotten eggs

If you happen to break a rotten egg, then you know the smell of hydrogen sulfide, because the stench of the spoiled egg depends on of its presence in rotting protein substances.

Valence Electrons

Outermost electrons of atoms, usually those involved in bonding.

Fast Neutron

A neutron ejected at high kinetic energy in a nuclear reaction.

Half-Cell

Compartment in which the oxidation or reduction half-reaction occurs in a voltaic cell.

Salt and its use in everyday life

Cooking salt is a product that is available in every kitchen, and it’s not as simple as it seems. The history of this product shows that it was valued like gold.

Sulfuric Acid

H2SO4: colorless, oily liquid, boiling point 330C. A 96 percent solution is used in the laboratory.

Fire Hazard: This is a very powerful, acidic oxidizer which can Ignite or even explode on contact with many materials, i.e. acetic acid ,acetone+ HNOs, alcohols, + H202, NH4OH, HCL, NaOH, and others.

Sulfuric acid has a wide range of uses and plays a part in the production of nearly all manufactured goods.

Metallic Bonding

Bonding within metals due to the electrical attraction of positively charges metal ions for mobile electrons that belong to the crystal as a whole.

Atomic Radius

Radius of an atom.