Chemical Engineer

Which is NOT a property of metals?

• brittleness

• conductivity

• ductility

• luster

What are two properties that make a metal a good choice to use as wire in electronics?

• conductivity, malleability

• ductility, conductivity

• luster, malleability

• malleability, high density

Where are most metals on the periodic table?

• on the left side only

• on the right side only

• in the middle only

• on the left side and in the middle

Using the periodic table, which element is a metalloid?

• carbon

• silicon

• oxygen

• aluminum

Iodine is a nonmetal. What is one property of iodine?

• conductivity

• dull appearance

• malleability

• ductility

The table above lists some information about certain elements in group 17. Which statement describes what happens to these elements as atomic number increases?

• Both melting point and boiling point decrease.

• Melting point increases and boiling point decreases.

• Melting point decreases and boiling point increases.

• Both melting point and boiling point increase.

What is one similarity among elements in a group?

• atomic mass

• atomic weight

• chemical properties

• practical uses

Where are most nonmetals located on the periodic table?

• in the bottom row

• on the left side and in the middle

• on the right side

• in the top row

Which group of elements can act as semiconductors?

• halogens

• metalloids

• metals

• noble gases

Can you separate salt from water using filtration?

• yes
• no