Shared Flashcard Set

Details

8th Grade Usher -.-
...
7
Science
Not Applicable
01/24/2005

Additional Science Flashcards

 


 

Cards

Term
Chemical Bonds
Definition
Joining of atoms to form a new substance. A chemical bond is a force of attraction that holds two atoms together.
Term
Valence Electrons
Definition
The electrons in the outermost energy level of an atom. These electrons are used to form bonds.
Term
Ionic Bonds
Definition
Electons are transferred between two atoms. The atom that loses electrons becomes a positive ion. The atom that gains electrons becomes a negative ion. The force of attraction between these oppositely charged ions is an ionic bond.
Term
Ionoic Bonds usually occure between...
Definition
Atoms of Metals and Nonmetals
Term
Energy & Ionic Bonding
Definition
Energy is needed to remove electrons from metal atoms to form positive ions. Energy is released when most non-metal atoms gain electrons to form negative ions.
Term
Covalent Bonding
Definition
Electrons are shared by two atoms. The force of attraction between the nuclei of the atoms and the shared electrons is a covalent bond. Usually occurs between atoms of nonmetals.
Term
Covalently Bonded Atoms
Definition
Make molecules. Molecules are the smallest particle of a compound with the chemical properties of the compound.
Supporting users have an ad free experience!