Question

Metals have been used since ancient times. In fact, different periods of human technological development are often described as the Iron Age, Bronze Age, and so on, based on the metals that were commonly used. In modern times, all of our electronics contain precious metals like gold, silver, platinum, and palladium.

Choose the properties to explain why these elements are used. Select all that apply.
a) High electrical conductivity
b) Low melting point
c) Resistance to corrosion
d) High abundance in nature

Answer 1

Gold, silver, platinum, and palladium are used in electronics for their high electrical conductivity and resistance to corrosion. Low melting points and high abundance are not reasons for their usage in electronics, as many have high melting points and are rare.

Step-by-step explanation:

Precious metals like gold, silver, platinum, and palladium are widely used in modern electronics due to several key properties. These metals have high electrical conductivity, which is crucial for electronics as it allows efficient transmission of electric current. Another significant property is their resistance to corrosion, meaning they do not easily rust or tarnish, which ensures longevity and reliability of electronic devices. While low melting point is not a reason for their use in electronics (as many of these metals have relatively high melting points), and high abundance in nature is not accurate since these metals are considered precious due to their relative rarity.