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NEETChemistryClassification of Elements and Periodicity in Properties

What is the reason for the increased shielding as you move down a group in the periodic table?

Options

  1. AThe outermost electrons are closer to the nucleus.
  2. BThe outermost electrons experience greater attraction to the nucleus.
  3. CThe inner core of electrons is more filled.
  4. DThe number of electrons in the outermost shell increases.

Correct answer

C. The inner core of electrons is more filled.

Step-by-step solution

The increased shielding occurs when the orbitals in the inner shells are completely filled, which happens in the case of alkali metals with a noble gas electronic configuration.

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