Properties and Applications of Elements

Which two elements in Group 14 primarily exhibit only a +4 oxidation state?

• Germanium and Tin

• Carbon and Silicon

• Lead and Flerovium

• Tin and Lead

Which element in Group 14 is classified as a nonmetal?

• Silicon

• Germanium

• Carbon

• Tin

What percentage of Earth's crust is made up of silicon dioxide?

• 25%

• 59%

• 75%

• 10%

Which allotrope of carbon is known for being one of the hardest and most durable substances?

• Graphite

• Fullerenes

• Carbon nanotubes

• Diamond

Which element is crucial for making microchip electronics?

• Carbon

• Silicon

• Germanium

• Tin

Germanium oxide (GeO) is essential in fiber optics because it has a high index of refraction and what other property?

• High dispersion

• Low dispersion

• High toxicity

• Low melting point

Which of the following is a property of tin?

• It is highly toxic.

• It rusts easily.

• It is non-toxic and does not rust.

• It is difficult to melt and cast.

What is a common application of lead?

• Making microchips

• Creating strong covalent bonds

• Used in lead-acid batteries

• Forming exoskeletons for diatoms