Periodic Table Questions Crossword

What particles determine the mass number?
Does the average of the mass ever increase or decrease of the same element?
Each column on the periodic table is called a ___.
This chemical family of elements contains the most reactive non-metals.
This number, found in each element box, contains a decimal.
This chemical family of elements contains elements that do not react with other elements.
What family of the periodic table is very flammable?
Each row on the periodic table is called a ___.
What is the outer most shell of an atom?
___ is the only non-metal that is on the metal side of the periodic table.
What family of elements have no color?
What is another word for Atomic Mass?
What is the name for the atoms with the same atomic number but different atomic masses
Where can you find the valence number when there are more then one?
What is the term when you multiply the Percent Abundance and Mass?
How many particles are there in an atom?
What is the mass of a proton?
How many groups and families are there in a period table?
How many symbols do not direclty match their elements name?
How many neutrons are in the element Helium?