Periodic Table Quiz

Which region of the periodic table represents metalloids?

• Unshaded area

• Darkest area

• Gray area

• The bottom two rows

A space agency is developing materials for a Mars rover. They need elements that can sometimes act like metals and sometimes like non-metals, depending on the conditions. Based on the periodic table, which group of elements should they consider?

• Elements on the left side.

• Elements on the right side.

• Elements in the bottom rows.

• Elements along the zigzag line.

Which of the following shows the correct use of a metalloid in modern life?

• Sodium is used to make table salt.

• Neon is used in making advertising signs.

• Gold is used to make jewelry.

• Silicon is used in computer chips.

Which of the following is a metalloid used in fireworks and as a fuel for rockets?

• Sodium

• Boron

• Gold

• Chlorine

Based on the observations, which samples are most likely metalloid?

• Sample 1 and Sample 3

• Sample 2 and Sample 3

• Sample 4 only

• Sample 2 only

Based on the observations and your knowledge of the periodic table, which element is most likely a metalloid?

• Element W

• Element X

• Element Y

• Element Z

Metalloids are elements that have some ________ and ____________ properties.

• radioactive; stable

• liquid; solid

• conductive; insulative

• metallic; nonmetallic

• gaseous; liquid

The elements in green in a zig-zag style on the periodic table are _____________.

• metals

• nonmetals

• metalloids

• noble gases

All metalloids are ________ at room temperature and are also brittle.

• liquid

• solid

• gaseous

• plasma

Metalloids are useful because they can __________ electricity, though not as well as metals.

• insulate

• conduct

• block

• absorb