Compound of elements

THIS ARTICLE WILL BE MUCH MORE EFFECTIVE WITH A PERIODIC TABLE OF THE ELEMENTS. IF AVAILABLE, HAVE ONE IN FRONT OF YOU.

   An element is a molecule made of one type of atom. A compound of elements is a molecule of two different types of elements. A compound must be made in a definite ratio.There are three types of compounds: Ionic, Covalent, and Metallic.

Ionic

  Made of one metal and one nonmetal. Forms a crystal with alternating positive and negative ions. STRONG BOND.

Covalent

  Made of two nonmetals, which touch the zigzag line on the periodic chart.Forms a diatomic molecule, which shares electrons. WEAK BOND.

Metallic

   Made of two metals, which are on the left of the periodic chart.. Forms a "sea of electrons"- a crystal of positive molecules with electrons flowing freely in between them. STRONG BOND. It can bend without breaking.

ARTICLE CREATED BY LUKE KISZLA. SPECIAL THANKS TO MY PROFESSOR OF CHEMISTRY, MRS. LANGWORTHY.