Periodic Table Review

Front

What are the elements in the same group of the periodic table known for?

Back

They have similar chemical properties.

Front

What are the horizontal rows on the periodic table called?

Back

Periods.

Front

Who arranged the modern periodic table by atomic number?

Back

Henry Moseley.

Front

What are the blue elements on the left side of the periodic table called?

Back

Metals.

Front

How many periods are there in the periodic table?

Back

7.

Front

What is the significance of an element's position in a group?

Back

Elements in the same group have similar valence electron configurations and chemical properties.

Front

What are the vertical columns on the periodic table called?

Back

Groups or families.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What are metalloids?

Back

Elements that have properties of both metals and nonmetals.

Front

What are noble gases?

Back

Elements in group 18 that are inert and do not readily react with other elements.