Periodic Table

Front

What are metalloids?

Back

Elements that have properties of both metals and nonmetals, often used in semiconductors.

Front

Which group of elements are the most reactive nonmetals?

Back

Group 17 (Halogens) are the most reactive nonmetals.

Front

How many valence electrons do elements in Group 2 have?

Back

Elements in Group 2 have 2 valence electrons.

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons determine how an element will react and bond with other elements.

Front

What are the vertical columns on the periodic table called?

Back

Groups.

Front

What are the horizontal rows on the periodic table called?

Back

Periods.

Front

What is the periodic law?

Back

The properties of elements are a periodic function of their atomic numbers.

Front

What are alkali metals?

Back

Group 1 elements that are highly reactive and have one valence electron.

Front

What are noble gases?

Back

Group 18 elements that are inert and have a full valence shell.

Front

What is the difference between metals and nonmetals?

Back

Metals are typically shiny, conductive, and malleable, while nonmetals are dull, insulative, and brittle.