2 Written Questions

1. a chart that organizes information about all of the known elements according to their properties.
2. number of protons and neutrons in the nucleus of an atom

2 Multiple Choice Questions

1. each horizontal row in the periodic table - elements in each horizontal row increase in atomic number, moving across the row from left to right
   1. period
   2. atomic mass
   3. periodic table
   4. group
2. a vertical column in the periodic table that is a chemical family
   1. group
   2. period
   3. periodic table
   4. atomic mass

1 True/False Question

1. atomic number of an element → number of protons and neutrons in the nucleus of an atom
   

   True        False