the periodic table group similar__________ together?
When grouped together, it is easier to predict the ___________of an element
increasing atomic matter
Upon what are the elements arranged in the periodic table?
What states the properties of the elements tend to charge in a regular pattern when elements are arranged in order of increasing atomic number, or number of protons in their atoms
What are horizontal rows in the peiodic table called?
What are verticle colums of elements on the periodic table called?
Same number of valance electrons
What is true of all the elements in the same verticle column?
What is the process of gaining or losing electrons to fill the outermost energy level called?
What is an atom or group of atoms that has lost or gained one or more electrons and therfore has a net electric charge called?
What is a positive Ion called?
What is a negative Ion called?
What is the symbol for atomic number?
number of protons in an atom
For what does atomic number stand?
What is the symbol of mass number?
number of protons and neutrons
For what does mass number stand?
What are atoms having the same number of protons, but diffrent
Protium, deuterium, and tritium are the three isotopes of what element?
Arons white whale
What is the nickname of deuterium?
What is the symbol of atomic mass unit?
Atomic mass unit
What is equal to one twelfth of the mass of a carbon 12 atom called?
Average atomic mass
What is the weighted average of the masses of all naturally occurring isotopes of an element called?