Periodic Table Basics

Front

What are the vertical columns on the periodic table called?

Back

Groups (or Families)

Front

What are groups on the periodic table?

Back

Vertical Columns

Front

Elements in the same group have the same number of what?

Back

Valence electrons

Front

In what direction are groups arranged in the periodic table?

Back

Up and down.

Front

Who developed the first periodic table in 1869?

Back

Dmitri Mendeleev

Front

What is the modern periodic table organized by?

Back

Atomic number.

Front

What are the major groups in the periodic table?

Back

Group 1: Alkali metals, Group 2: Alkaline earth metals, Group 17: Halogens, Group 18: Noble gases.

Front

What do elements in the same group share?

Back

Similar properties and behaviors.

Front

What is the significance of valence electrons in groups?

Back

They determine the chemical properties of the elements.

Front

What is the difference between groups and periods in the periodic table?

Back

Groups are vertical columns; periods are horizontal rows.