Ch 20, Elements and their Properties Quiz

When magnesium and fluorine react, what type of bond is formed?

• metallic

• ionic

• covalent

• diatomic

What type of bond is found in a piece of pure gold?

• metallic

• ionic

• covalent

• diatomic

Because electrons move freely in metals, which property describes metals?

• brittle

• hard

• dull

• conductors

Which set of elements makes up the most reactive group of all metals?

• iron triad

• coinage metals

• alkaline earths

• alkali metals

Which element is the most reactive of all nonmetals?

• fluorine

• uranium

• hydrogen

• oxygen

Which element is always found in nature combined with other elements?

• copper

• gold

• magnesium

• silver

Which elements are least reactive?

• metals

• halogens

• noble gases

• actinides

What element is formed when neptunium disintegrates?

• ytterbium

• promethium

• americium

• plutonium

Which element is an example of a radioactive element?

• astatine

• bromine

• chlorine

• fluorine

Which is the only group that is completely nonmetallic?

• 1

• 2

• 17

• 18