Parts of the Periodic Table

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What are the three main types of elements in the periodic table?

Back

Metals, Nonmetals, and Metalloids.

Front

What is a group in the periodic table?

Back

A group is a vertical column in the periodic table that contains elements with similar chemical properties.

Front

What is a period in the periodic table?

Back

A period is a horizontal row in the periodic table, indicating the number of electron shells in the elements.

Front

What are metalloids?

Back

Metalloids are elements that have properties of both metals and nonmetals, and they are found along the staircase line in the periodic table.

Front

Which element is in Group 1 of the periodic table?

Back

Lithium (Li) is an example of an element in Group 1.

Front

What is the significance of the staircase line in the periodic table?

Back

The staircase line separates metals from nonmetals and indicates the location of metalloids.

Front

What is the smallest subatomic particle?

Back

The electron is the smallest subatomic particle.

Front

How do you determine the number of neutrons in an atom?

Back

The number of neutrons can be found by subtracting the atomic number from the atomic mass.

Front

What are noble gases?

Back

Noble gases are elements in Group 18 of the periodic table that are inert and do not readily react with other elements.