2.3 Using the Periodic Table

What are common properties of metals?

They are shiny and they conduct thermal energy and electricity.

Periodic table

A chart of the elements arranged into rows and columns according to their physical and chemical properties.

Group

A column on the periodic table. (Vertical) The elements in the same group have similar chemical properties and react with other elements in similar ways.

Period

A row on the periodic table. (Horizontal)

How are the elements arranged on the periodic table?

And elements placement on the periodic table is determined by the atomic number. The number of protons it's atoms have.

Where are metalloids on the periodic table?

Between the metals and nonmetals.

What information is on an element key?

Element's chemical symbol, atomic number, and atomic mass.

How can the arrangement of the periodic table help to classify elements by their properties?

Elements in the same group have similar chemical properties and react with other elements in the same way. Metals, nonmetals, and metalloids are all grouped in similar places on the periodic table.

What are common properties of nonmetals?

Most are gases, and they do not conduct thermal energy or electricity.

Where are metals on the periodic table?

On the left side and the middle.

Where are nonmetals on the periodic table?

On the right side.

Periodic

Repeating Pattern

How can scientists determine what newly created element's properties might be?

Scientists determine where the element would be on the periodic table, then examine elements in the same group to understand what the new element's properties might be.

How is the periodic table used to predict the properties of an element?

The periodic table shows how elements and their properties relate to each other. Scientists use these patterns of properties to predict the properties of new elements.

What are properties of metalloids?

They have properties of both metals and nonmetals.