Question

Explain screening effect with suitable example

Answer 1

Answer:

Screening effect or Shielding effect can be defined as a reduction in the nuclear charge on the electron cloud. This is caused by difference in the attraction forces of the electron on the nucleus.

Answer 2

Screening effect with suitable example:

• The outermost electron of an atom is identified as the valence electrons.

• Due to the presence of inner orbitals the force of attraction on these orbitals decreases. This effect is known as the screening effect.

• This effect is increased when the 'number of electrons' in the inner shells within the nucleus and the 'outermost electron' increases.

• The valence electrons experience two types of forces one is the force of attraction from the nucleus and the force of repulsion from inner electrons.

• The examples of the screening effect is in 'nuclear fission' when electrons from the middle of the atom are drawn away.

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