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Give reason. Alkali metals have low ionization energies. - Chemistry

Short Note

Give reason.

Alkali metals have low ionization energies.

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Solution

  1. Across a period, the screening effect is the same while the effective nuclear charge increases.
  2. As a result, the outer electron is held more tightly, and hence, the ionization enthalpy increases across a period.
  3. Since the alkali metals are present in group 1 of the modern periodic table, they have low ionization energies.
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APPEARS IN

Balbharati Chemistry 11th Standard Maharashtra State Board
Chapter 7 Modern Periodic Table
Exercises | Q 5. (J)(a) | Page 109
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