[amp_mcq option1=”Argon, copper, silver” option2=”Hydrogen, argon, copper” option3=”Oxygen, copper, silver” option4=”Hydrogen, oxygen, Argon” correct=”option1″]
The correct answer is: A. Argon, copper, silver
Diamagnetism is a property of materials that are repelled by a magnetic field. All materials exhibit diamagnetism to some extent, but it is usually very weak and can only be detected in the presence of a strong magnetic field.
Argon, copper, and silver are all diamagnetic elements. This means that they are all repelled by a magnetic field. The electrons in these elements are paired, and the pairs have opposite spins. This creates a magnetic field that opposes the external magnetic field, causing the material to be repelled.
Hydrogen and oxygen are both paramagnetic elements. This means that they are attracted to a magnetic field. The electrons in these elements are unpaired, and the unpaired electrons have the same spin. This creates a magnetic field that is in the same direction as the external magnetic field, causing the material to be attracted.
Therefore, the only group of elements that are diamagnetic is A. Argon, copper, silver.