Concept explainers
Interpretation:
The reason for gold to be used for jewelry and as a conductor in electronic devices needs to be explained.
Concept introduction:
Gold is found in group 11, period 7 in the periodic table. Its

Answer to Problem 105A
Gold is a transition element of group 11.
Explanation of Solution
Gold metal consist of a sea of delocalized electrons surrounding gold cations. The sea of electrons allows a current to pass freely through them. So, gold metal conduct electricity. Gold metal is unreactive and it is inert to corrosion and oxidation.
This is the reason due to which gold is used for jewelry and as a conductor in electronic devices
Metals are good conductor of electricity. In the reactivity series gold is found at the end of the series. So, it does not react with other metals in the pure form.
Chapter 7 Solutions
Chemistry: Matter and Change
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