Science Studying Tool (All Units From Atomic Bonding-?)

Compound

Two or more different atoms that are chemically bonded in a fixed ratio.

Molecule

Two or more atoms that are chemically bonded, which can be the same or different elements.

Ionic Bond

Bonding likely to occur between metals and nonmetals.

Covalent Bond

Bonding that usually occurs when nonmetals react with other nonmetals, sharing valence electrons.

Valence Electrons

Electrons on the outermost ring of an atom.

Lewis Dot Diagram

A visual representation showing the valence electrons of an atom as dots.

Transfer

The process by which electrons are shared or exchanged between atoms in covalent bonds.

Share

The process in which atoms contribute valence electrons to form a bond.

Subscript

A small number behind an element indicating the number of atoms for that element.

Coefficient

The large number in front of a chemical formula showing the number of molecules.

Diatomic Elements

Molecules made from two atoms of the same element.

Chemical Formula

A combination of chemical symbols and numbers representing a molecule or compound.

Group 1 Ionic Charge

1+ (Metals lose electrons to form positive ions).

Group 2 Ionic Charge

2+ (Metals lose electrons to form positive ions).

Groups 3-12 Ionic Charge

Charges vary for these groups.

Group 13 Ionic Charge

3+ (Metals lose electrons to form positive ions).

Group 14 Ionic Charge

4+ or 4- (Charge varies).

Group 15 Ionic Charge

3- (Non-metals gain electrons to form negative ions).

Group 16 Ionic Charge

2- (Non-metals gain electrons to form negative ions).

Group 17 Ionic Charge

1- (Non-metals gain electrons to form negative ions).

Group 18 Ionic Charge

X (Noble gases do not bond as their outer shell is full).