Reading the Periodic Table

Front

What are the majority of elements on the periodic table?

Back

Metals.

Front

What does a shaded region in the periodic table represent?

Back

A period.

Front

Which group of elements have similar chemical properties?

Back

Mg, Ca, Sr, Ba.

Front

How many protons and neutrons does Sulfur (atomic number = 16) have?

Back

Protons = 16, Neutrons = 16.

Front

Identify the element in Group 18, Period 1.

Back

Helium, He.

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 is a group in the periodic table?

Back

A vertical column of elements with similar chemical properties.

Front

What is a period in the periodic table?

Back

A horizontal row of elements.

Front

What is the significance of the atomic mass?

Back

It represents the average mass of an element's isotopes.