Periodic Table Families

Front

What are Metalloids?

Back

Metalloids are a small group of elements that have both metallic and nonmetallic properties.

Front

Which element is a Noble Gas?

Back

Krypton is a Noble Gas.

Front

What are Transition Metals?

Back

Transition Metals are elements in groups 3-12 that have a moderate range of reactivity, are shiny, good conductors of heat and electricity, and have higher densities and melting points than Groups 1 and 2.

Front

What are Metalloids sometimes called?

Back

Metalloids are sometimes called 'semiconductors'.

Front

What are Halogens?

Back

Halogens are elements in Group 17 that are all nonmetals, very reactive, poor conductors of heat and electricity, and tend to form salts with metals.

Front

What is the general property of Noble Gases?

Back

Noble Gases are colorless, odorless, and inert gases that do not readily react with other elements.

Front

What is the significance of valence electrons in chemical reactivity?

Back

Valence electrons determine how an element will react chemically; elements with fewer valence electrons tend to lose them easily, while those with more tend to gain or share electrons.

Front

What is the difference between Alkali Metals and Alkaline-earth Metals?

Back

Alkali Metals (Group 1) have one valence electron and are highly reactive, while Alkaline-earth Metals (Group 2) have two valence electrons and are less reactive than Alkali Metals.

Front

What are the properties of Nonmetals?

Back

Nonmetals are generally poor conductors of heat and electricity, have lower densities, and can be gases, liquids, or solids at room temperature.

Front

What is the periodic trend in reactivity for Alkali Metals?

Back

The reactivity of Alkali Metals increases as you move down the group in the periodic table.