Podcast Beta
Questions and Answers
How many groups are present in the s-block?
What is the maximum number of electrons that the s-subshell can accommodate?
What is the general configuration for Alkali Metals?
Which element has the electronic configuration [He] 2s^1?
Signup and view all the answers
Why are they called alkaline earth metals?
Signup and view all the answers
What is the electronic configuration of Fr?
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?
Signup and view all the answers
Qual es le ordine correcte del energia de hydration del alkaline earth metals?
Signup and view all the answers
Quale metallo alcalinoterrose ha le plus basso energia de ionisation in un particular periodo del tabula periodic?
Signup and view all the answers
Which element is not considered an alkaline earth metal due to its amphoteric oxide?
Signup and view all the answers
In the particular period of the periodic table, which alkaline earth metal has the lowest ionization energy?
Signup and view all the answers
Which element has the largest atomic radius among the alkali and alkaline earth metals?
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?
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?
Signup and view all the answers
Why is beryllium (Be) not considered as an alkaline earth metal?
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.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
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.
