Electron Configuration and S-Block Elements Quiz
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Questions and Answers

How many groups are present in the s-block?

  • 2 (correct)
  • 3
  • 4
  • 1
  • What is the maximum number of electrons that the s-subshell can accommodate?

  • 6
  • 8
  • 2 (correct)
  • 4
  • What is the general configuration for Alkali Metals?

  • [He] 2s^1 (correct)
  • [Kr] 4d^10 5s^2
  • [Ar] 3d^10 4s^1
  • [Ne] 3s^1
  • Which element has the electronic configuration [He] 2s^1?

    <p>Li</p> Signup and view all the answers

    Why are they called alkaline earth metals?

    <p>Because their oxides and hydroxides are basic in nature</p> Signup and view all the answers

    What is the electronic configuration of Fr?

    <p>[Rn] 5f^14 6d^10 7s^1</p> Signup and view all the answers

    Qual es le ordine del radius atomic del alkali metals e le alkaline earth metals in le ordine crescente?

    <p>Li &gt; Na &gt; K &gt; Rb ; Be &gt; Mg &gt; Ca &gt; Sr</p> Signup and view all the answers

    Qual es le ordine correcte del energia de hydration del alkaline earth metals?

    <p>Ca &gt; Sr &gt; Ba &gt; Mg</p> Signup and view all the answers

    Quale metallo alcalinoterrose ha le plus basso energia de ionisation in un particular periodo del tabula periodic?

    <p>Rubidio</p> Signup and view all the answers

    Which element is not considered an alkaline earth metal due to its amphoteric oxide?

    <p>Beryllium</p> Signup and view all the answers

    In the particular period of the periodic table, which alkaline earth metal has the lowest ionization energy?

    <p>Beryllium</p> Signup and view all the answers

    Which element has the largest atomic radius among the alkali and alkaline earth metals?

    <p>Barium</p> Signup and view all the answers

    Which of the following is the correct order of atomic radius from smallest to largest for the alkali metals and alkaline earth metals?

    <p>Li &gt; Na &gt; K &gt; Be &gt; Mg &gt; Ca</p> Signup and view all the answers

    In which of the following groups do the elements possess the lowest ionization energy in a particular period of the periodic table?

    <p>Group 1 (Alkali Metals)</p> Signup and view all the answers

    Why is beryllium (Be) not considered as an alkaline earth metal?

    <p>Because its oxide is amphoteric</p> Signup and view all the answers

    Study Notes

    S-Block Elements

    • Contains two groups: Alkali Metals and Alkaline Earth Metals.
    • Maximum of 2 electrons can be accommodated in the s-subshell.

    Alkali Metals

    • General electronic configuration: ns^1, where n represents the principal quantum number.
    • Element with the electronic configuration [He] 2s^1 is Lithium (Li).
    • Atomic radius increases down the group, with Alkali Metals possessing the largest atomic radius among s-block elements.

    Alkaline Earth Metals

    • Named "alkaline" due to their basic (alkaline) hydroxides when reacted with water and "earth" as they were originally found in earth-like oxides.
    • Electronic configuration of Francium (Fr) is [Rn] 7s^1.
    • Atomic radius order: Alkali Metals > Alkaline Earth Metals.
    • Correct order of hydration energy for Alkaline Earth Metals typically increases with charge density.

    Ionization Energy

    • Barium (Ba) has the lowest ionization energy in its period within Alkali Earth Metals.
    • Alkaline Earth Metal with lowest ionization energy in a given period is also Barium.
    • Elements in group 1 (Alkali Metals) possess the lowest ionization energy in any given period.

    Miscellaneous

    • Beryllium (Be) is not included as an Alkaline Earth Metal due to its amphoteric oxide properties, contrasting with the strongly basic nature of the group.
    • Among the Alkali and Alkaline Earth Metals, Francium exhibits the largest atomic radius.

    Atomic Radius and Ionization Energy

    • Order of atomic radius from smallest to largest for Alkali Metals and Alkaline Earth Metals generally follows: Be < Mg < Ca < Sr < Ba < Ra and Li < Na < K < Rb < Cs < Fr.

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    Description

    Test your knowledge of electron configuration and the properties of s-block elements with this quiz. Explore the arrangement of electrons in the s-subshell and learn about the characteristics of alkali metals and alkaline earth metals.

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