Alkali Metals trivia
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Alkali Metals Mini Quiz
Test your knowledge with these top questions!
Frequently stored in oil to prevent an explosion, which chemical element combines with chlorine to form common table salt?
Pure sodium is so reactive with water it must be stored in oil; yet when bonded with deadly chlorine gas, it becomes essential (and safe) table salt.
Which light element powers most rechargeable phone batteries?
Lithium is the lightest metal and the least dense solid element. Its high energy density allows batteries to hold a large charge while remaining small and lightweight.
Which element combines with chlorine to form table salt?
Pure sodium is a soft, silvery metal that reacts violently with water. When bonded with chlorine gas, it creates sodium chloride, a substance essential for life.
Which heavy element sits at the bottom of the 1st column?
Francium is the heaviest naturally occurring alkali metal. Scientists estimate that less than 30 grams of the element exist in the Earth's crust at any given time.
Chemists store pure sodium in oil to block which gas?
Sodium reacts rapidly with oxygen to form sodium oxide, causing its surface to tarnish. Oil prevents this reaction and blocks contact with moisture in the air.
Essential for keeping time in atomic clocks, which gold-colored element is the most reactive of the stable metals?
Cesium is so precise for timekeeping that the official definition of a second is based on the cycles of radiation from a cesium-133 atom.
Found in wood ash and vital for plant growth, which chemical element is famously sourced from eating bananas?
While bananas are the famous source, a medium potato actually contains significantly more potassium than a banana.
Named after the Arabic word for "ashes," which group of elements forms a caustic solution when reacting with water?
The name "alkali" comes from the Arabic "al-qaly" meaning "ashes of the saltwort," referring to the plant utilized to produce soda ash.
Used to power modern smartphones, which soft chemical element can be easily cut with a kitchen knife?
Despite powering our heavy tech, lithium is the lightest metal and is soft enough to be cut with a knife, floating on water while reacting.