Question

Explain the term Diamagnetism.

Answer 1

(Diamagnetism) In chemistry and physics, to be diamagnetic indicates that a substance contains no unpaired electrons and, thus, is not attracted to a magnetic field. ... Sebald Justinus Brugmans first observed diamagnetism in 1778, noting antimony and bismuth were repelled by magnets.

Answer 2

Answer:

(1) The magnetic properties of a substance arise due to presence of the electrons.

(2) An electron while revolving around the nucleus, also spins around its own axis and generates a magneic momcnt and a magneuC property.

(3) If an atom or a molecule of the substance contains all electrons paired, spinning clockwise and anti clockwise, their magnctic moments and magnetic properties get cancelled. Hence they opp0se and repel the applied magnetic field. This phenomenon is called diamagnetism and the substance is said to be diamagnetic.

For example : Zn. Cd, H_2O. NaCl, etc.