A substance that cannot be broken down into other substances
Carbon-14 is an example of an
A(an) _____________________________________ forms when two or more elements combine
An ion can have either a positive or negative charge.
Any electrons can be used in the formation of chemical bonds.
The proportions of individual elements in a compound can change.
Compounds are chemically and physically similar to the elements that comprise them.
The elements in a group on the periodic table have a characteristic number of valence electrons.
The period/row where an element is located on the periodic table indicates the number of energy levels the atom has.
positively charged ion
a charged particle that forms when atoms gain or lose electrons
negatively charged ion
type of bond that forms when atoms share electrons
electrons that are located in the outermost energy level
types of bond that forms when atoms gain or lose electrons