Using the Periodic Table

Front

What element is in group 18, period 5?

Back

Xenon (Xe)

Front

What do the atoms in the same period (row) of the Periodic Table have in common?

Back

They have the same number of electron shells.

Front

What are the rows of the periodic table called?

Back

Periods

Front

What are the columns of the periodic table called?

Back

Groups

Front

What do atoms in the same group (column) of the Periodic Table have in common?

Back

They have the same number of valence electrons.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the significance of the Periodic Table?

Back

It organizes elements based on their properties and atomic structure.

Front

What is a period in the context of the Periodic Table?

Back

A horizontal row of elements.

Front

What is a group in the context of the Periodic Table?

Back

A vertical column of elements.

Front

How does the reactivity of elements change across a period?

Back

Reactivity generally decreases from left to right.