Questions And Answers On Metals And Their Properties
Question: Metals can be hammered or pressed into thin sheets. What is this property called?
Explanation: Malleability is a property that allows for flattening of metals into thin sheets under compressive pressure.
Fun Fact: Gold is the most malleable metal.
Question: Metals can be stretched into a thin wire under tensile strength before failure. What is this property called?
Fun Fact: Platinum is the most ductile metal, followed by Gold.
Question: Which is the only metal that's liquid at room temperature?
Fun Fact: Mercury melts at -38.83 degree Celsius or -37.89 Fahrenheit.
Question: Which is the most abundant metal on Earth's crust?
Fun Fact: About eight percent of the Earth's crust is made up of Aluminium.
Question: Which metal is the best conductor of electricity?
Fun Fact: Along with being the best conductor of electricity, Silver is also the best conductor of heat.
Question: When most metals react with oxygen, what do they form?
Fun Fact: Silver and Gold are the only two metals that don't react with Oxygen at any temperature.
Question: What is the most reactive metal?
Fun Fact: Caesium is also the softest metal and has a melting point of 28.5 degree Celsius (83.3 F).
Question: Which metals only occur in free or native state?
Fun Fact: Platinum and Gold are the only two metals that are occur completely in a pure form in nature.
Question: What is an alloy?
Explanation: Alloys are homogeneous mixture of two or more metals, or a metal and an another element in the periodic table. Alloys enhance the property of metals, making them fit for human use.
Question: What is the Activity Series of Metals?
Explanation: The Reactivity series or Activity series is a list of metals, ranked from their highest reactivity to the lowest. Caesium ranks the highest in the list, while Platinum ranks the lowest.
Question: What are Amphoteric Oxides?
Fun Fact: Zinc Oxide, Lead Oxide and Aluminium Oxide are some of the examples of Amphoteric Oxides.