Quiz on Elements and the Periodic Table

What is the primary use of lithium mentioned in the text?

• Nuclear fusion

• Rechargeable batteries

• Water purification

• Space exploration

What are atoms or elements on the periodic table made up of?

• Molecules

• Smaller building blocks

• Liquids

• Gases

What is water made up of according to the text?

• Two atoms of hydrogen and one atom of oxygen

• Two atoms of oxygen and one atom of hydrogen

• One atom of hydrogen and one atom of oxygen

• Two molecules of oxygen and one molecule of hydrogen

What is the unique characteristic of hydrogen as mentioned in the text?

• It is a non-metal placed above alkali metals.

• It is the heaviest element in the periodic table.

• It is used in rechargeable batteries.

• It is the rarest element in the universe.

What is the primary use of boron-based compounds mentioned in the text?

• Treating bipolar disorder

• Making emeralds

• Used in bulletproof vests and armor for tanks

• Preserving biological samples

What percentage of the Earth's atmosphere is made up of nitrogen?

• 65%

• 78%

• 50%

• 90%

Why does pure sodium need to be stored in oil?

• To prevent it from reacting with water and air

• To enhance its reactivity

• To preserve its color

• To increase its density

What element is responsible for the bright red color in fireworks due to calcium carbonate dissolving in slightly acidic groundwater?

• Scandium

• Calcium

• Titanium

• Chromium

What is the source of the red color in rubies?

• Iron impurities

• Chromium impurities

• Aluminum impurities

• Titanium impurities

Which element gives blue colors to glass and ceramics and is essential for vitamin B12?

• Nickel

• Cobalt

• Zinc

• Copper