Periodic Table and Families of Elements

Groups of the Periodic Table

Names of the columns

• Elements in groups behave similarly.

• Many of the important groups have names.

Group 1

Alkali Metals

Multiple Choice

Which of these elements is an Alkali Metal?

• Cs

• Fe

• C

• Kr

Alkali Metals

All have 1 valence electron

All VERY reactive!

• So reactive they are never found in pure form in nature.

• Always in compounds.

• The get more reactive as you go down the column.

Group 2

Alkaline-Earth Metals

Multiple Choice

Which of these is an Alkaline Earth Metal?

• Mg

• Na

• Sc

• U

Alkaline-earth Metals

All have 2 valence electrons

Alkaline-earth Metals

• Also reactive

• Never found in pure form in nature.

• Not as reactive as the Alkali Metals though.

Group 17

Halogens

Multiple Choice

Which of these is a halogen?

• I

• S

• Ar

• Po

Halogens

All have 7 valence electrons

Halogens

Also VERY reactive!

Group 18

Noble Gases

Multiple Choice

Which of these is a Noble Gas?

• He

• F

• O

• S

Noble Gases

All have 8 valence electrons

(except for He, it has 2!)

Noble Gases

• Very UNreactive!

• Virtual never found in compounds.

Groups 3-12

Transition Metals

Multiple Choice

Which of these is a transition metal?

• Cu

• Xe

• Rb

• N

Groups 3-12

• Contains most of the stereotypical metals...

• Gold, silver, copper, iron, titanium, platinum, etc.

Bottom Row known as Rare Earth Metals

Needed for Electronics

Multiple Choice

Which group does Bromine belong to?

• Alkali Metals

• Alkaline-Earth Metals

• Halogens

• Noble Gases

• Transition Metals

Multiple Choice

Which group does Neon belong to?

• Alkali Metals

• Alkaline-Earth Metals

• Halogens

• Noble Gases

• Transition Metals

Multiple Choice

Which class does silver belong to?

• Alkali Metals

• Alkaline-Earth Metals

• Halogens

• Noble Gases

• Transition Metals

Multiple Choice

Which group does calcium belong to?

• Alkali Metals

• Alkaline-Earth Metals

• Halogens

• Noble Gases

• Transition Metals

Multiple Choice

Which group does sodium belong to?

• Alkali Metals

• Alkaline-Earth Metals

• Halogens

• Noble Gases

• Transition Metals

Multiple Choice

Which element would you expect to behave like potassium? (K)

• Ca

• O

• Na

• Br

Multiple Choice

Which type of elements have 1 valence electron?

• Alkali Metals

• Alkaline-Earth Metals

• Transition Metals

• Halogens

• Nobel Gases

Multiple Choice

Which type of elements have 7 valence electrons?

• Alkali Metals

• Alkaline-Earth Metals

• Transition Metals

• Halogens

• Nobel Gases

Multiple Select

Which type of elements are very unreactive and virtually never form compounds? (select all that apply)

• Alkali Metals

• Alkaline-Earth Metals

• Transition Metals

• Halogens

• Nobel Gases

Multiple Select

Which type of elements are very Reactive and virtually never found in pure form in nature, only in compounds? (select all that apply)

• Alkali Metals

• Alkaline-Earth Metals

• Transition Metals

• Halogens

• Nobel Gases