Front

What do all elements in the same period have?

Back

Same number of shells.

Front

What is the symbol for Hydrogen?

Back

H.

Front

What is the symbol for Sulfur?

Back

S.

Front

As you move left to right on a row or period, what happens?

Back

Atomic number increases by 1.

Front

Where are the metalloids found on the periodic table?

Back

Stair step/diagonal.

Front

What is the periodic table?

Back

A chart that organizes all known elements by their properties.

Front

What are groups in the periodic table?

Back

Columns of elements that have similar chemical properties.

Front

What are periods in the periodic table?

Back

Rows of elements that have the same number of electron shells.

Front

What is an element?

Back

A pure substance made of only one type of atom.

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom.