Organization of the Periodic Table

1. The modern periodic law states that the properties of the elements are periodic functions of their atomic ______________________ while the periodic law Mendeleev presented stated that the properties of the elements are periodic
functions of their atomic ______________________.
number, mass
mass, electron distribution
mass, number

2. Elements in the same column of the periodic table have similar properties due to similar ______________________.
electron distributions
mass
protons

3. Horizontal rows on the periodic table are called ______________________.
periods
families
metalloids

4. Vertical columns on the periodic table are called ______________________.
families
periods
nonmetals

5. Elements with both metallic and nonmetallic properties are called ______________________.
metalloids
metals
nonmetals

6. Elements to the left of the stair-step line on the periodic table are (7)______________________ while those to the right of the stair-step line are (8)______________________.
metals, nonmetals
nonmetals, metals

 

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