Periodic Table Review

Front

What is the Periodic Table?

Back

A tabular arrangement of chemical elements, organized by increasing atomic number, electron configuration, and recurring chemical properties.

Front

What are groups in the Periodic Table?

Back

Vertical columns in the Periodic Table that contain elements with similar chemical properties and the same number of valence electrons.

Front

What are periods in the Periodic Table?

Back

Horizontal rows in the Periodic Table that indicate the number of electron shells in the elements.

Front

What is a metal?

Back

Elements that are typically shiny, malleable, ductile, and good conductors of heat and electricity.

Front

What is a non-metal?

Back

Elements that are usually dull, brittle, and poor conductors of heat and electricity.

Front

What is a metalloid?

Back

Elements that have properties of both metals and non-metals, often used as semiconductors.

Front

What is the significance of Group 1 elements?

Back

They are alkali metals, highly reactive, especially with water, and have one valence electron.

Front

What is the significance of Group 18 elements?

Back

They are noble gases, very unreactive due to having a full valence shell.

Front

What are valence electrons?

Back

Electrons in the outermost shell of an atom that determine its chemical properties and reactivity.

Front

How do you determine the group of an element?

Back

By counting the number of valence electrons in its outer shell.