8.1 P.1 8 P.1.2

Elements in the same column of the Periodic Table all

• have the same number of protons

• share the same atomic structure

• have similar chemical properties

• share the same number of neutrons

Which elements are the LEAST reactive on the Periodic Table?

• halogens

• noble gases

• alkali metals

• lanthanides

Which BEST describes Groups 3 through 12 on the Periodic Table?

• alkaline earth metals

• transition metals

• metalloids

• nonmetals

What is the significance of metalloids in the periodic table?

• they separate liquids from solids

• they separate metals from nonmetals

• they combine elements and compounds

• they will help robots take over the world someday

Which group contains the elements with the MOST VARIED properties?

• noble gases

• alkali metals

• transition metals

• alkaline earth metals

Where are the MOST REACTIVE nonmetals located on the Periodic Table?

• the uppermost complete row

• the rows at the bottom

• the column on the far left side

• the second column from the right side

An engineer needs a hard, non-magnetic semiconductor. Which element would BEST fit this description?

• aluminum (Al)

• carbon (C)

• silicon (Si)

• silver (Ag)

Which element is the LEAST reactive?

• carbon

• helium

• hydrogen

• iodine

Which property of sodium (Na) can be determined based on its location on the Periodic Table?

• it is a solid metal

• it is a liquid metal

• it is a solid nonmetal

• it is a liquid nonmetal

Which property would be MOST USEFUL in placing a newly discovered element in Group 18?

• reactivity

• malleablility

• conductivity

• nonreactivity