Properties of Metals and Solubility

What is a common property of metals?

• Insulation (绝缘)

• Malleability (可锻性)

• Brittle (脆性)

• Ductility (可拉伸性)

Which metal is known for its high conductivity (导电性)?

• Iron (铁)

• Aluminium (铝)

• Copper (铜)

• Gold (黄金)

What does it mean for a metal to be ductile (可拉伸性)?

• It can be hammered into sheets. (可锻造)

• It can be drawn into wires. (可以拉成线)

• It does not corrode. (不腐蚀)

• It is a poor conductor. (导电性差)

Which of the following metals is typically used in circuit boards (电路板)?

• Gold (黄金)

• Lead (铅)

• Titanium (钛)

• Zinc (锌)

What property allows metals to conduct electricity (导电)?

• Density (密度)

• Malleability (可锻性)

• Electrical conductivity (电导率)

• Sonority (音响性)

Which metal is the most malleable (可锻性) of all?

• Copper (铜)

• Gold (黄金)

• Aluminium (铝)

• Iron (铁)

How does temperature affect the conductivity (导电性) of metals?

• It increases conductivity. (提高导电性)

• It decreases conductivity. (降低导电性)

• It has no effect. (没有影响)

• It varies by metal. (因金属而异)

Which of the following metals is most often used for electrical wiring?

• Iron (铁)

• Aluminium (铝)

• Lead (铅)

• Copper (铜)

What is the property of a metal that does not corrode (腐蚀)?

• Durability (耐久性)

• Reactivity (反应性)

• Conductivity (导电性)

• Density (密度)

Which metal has a high resistance to corrosion (腐蚀)?

• Iron (铁)

• Gold (黄金)

• Tin (锡)

• Lead (铅)