Paramagnetic vs Diamagnetic Substances Magnetic Mystery

The video explains how electrons revolving around a nucleus generate a magnetic field, behaving like a magnet with a specific magnetic momentum known as Bohr magneton. It classifies materials based on their magnetic properties into paramagnetic, diamagnetic, ferromagnetic, antiferromagnetic, and ferrimagnetic substances. Paramagnetic substances, like chromium, have unpaired electrons and are weakly attracted by magnetic fields. Diamagnetic substances, such as zinc, have paired electrons and are weakly repelled by magnetic fields.

What is the term used to describe the magnetic momentum of an electron?

• Bohr magneton

• Electron volt

• Quantum spin

• Magnetic flux

Which of the following is a characteristic of paramagnetic substances?

• They are made of non-metallic elements.

• They are strongly attracted by magnetic fields.

• They have no unpaired electrons.

• They lose magnetism in the absence of a magnetic field.

Which element is an example of a paramagnetic substance due to its electronic configuration?

• Sodium chloride

• Chromium

• Benzene

• Zinc

What is the main reason diamagnetic substances repel magnetic fields?

• Metallic bonding

• Absence of unpaired electrons

• Presence of unpaired electrons

• High atomic mass

Which of the following substances is diamagnetic?

• Nickel

• Cobalt

• Zinc

• Manganese