What's in Periodic Table of Elements

118 facts · Physical Sciences

Sample questions

• As the lightest of the noble gases, it's used in balloons to make them float.
• As the lightest of the alkali metals, it can float on water.
• A strong yet lightweight metal commonly found in soda cans and baseball bats.
• Inhaling the gas form can cause burning in the eyes and sinuses.
• Has such a low melting point that even a candle can cause it to melt.