8 Questions
Explain the maximum number of electrons that can be accommodated in a set of p orbitals.
The maximum number of electrons that can be accommodated in a set of p orbitals is six.
What is the valence shell electronic configuration of p-block elements?
The valence shell electronic configuration of p-block elements is ns2 np1-6 (except for helium).
How does the difference in inner core of elements influence their properties?
The difference in inner core of elements greatly influences their physical and chemical properties, such as atomic and ionic radii, ionization enthalpy, etc.
What is the maximum oxidation state shown by a p-block element?
The maximum oxidation state shown by a p-block element is equal to the total number of valence electrons (i.e., the sum of the s and p electrons).
How many groups of p-block elements are there in the periodic table and what are their numbers?
There are six groups of p-block elements in the periodic table numbering from 13 to 18.
What is the electronic configuration of boron in BF3?
The electronic configuration of boron in BF3 is trivalent, with only six electrons around the central atom.
How do electron deficient molecules behave as Lewis acids?
Electron deficient molecules have a tendency to accept a pair of electrons to achieve stable electronic configuration, thus behaving as Lewis acids.
What happens to the tendency to behave as Lewis acid down the group?
The tendency to behave as Lewis acid decreases with the increase in size down the group.
Study Notes
p-Orbitals and Electron Accommodation
- A set of p orbitals can accommodate a maximum of 6 electrons.
Electronic Configuration of p-Block Elements
- The valence shell electronic configuration of p-block elements is ns² np¹ to ns² np⁶.
Influence of Inner Core on Element Properties
- The difference in the inner core of elements influences their properties due to the shielding effect, which affects the nuclear attraction on outer electrons.
Maximum Oxidation State of p-Block Elements
- The maximum oxidation state shown by a p-block element is +7, exhibited by chlorine (Cl).
Groups of p-Block Elements
- There are 6 groups of p-block elements in the periodic table, numbered from 13 (Boron group) to 18 (Noble gases).
Electronic Configuration of Boron in BF3
- The electronic configuration of boron in BF3 is 1s² 2s² 2p¹.
Electron Deficient Molecules and Lewis Acids
- Electron deficient molecules, like BF3, behave as Lewis acids, accepting electrons to form a coordinate covalent bond.
- This is because they have an incomplete octet and can accommodate additional electrons.
Tendency to Behave as Lewis Acids Down the Group
- The tendency to behave as Lewis acids decreases down the group due to the increase in size of the central atom, leading to a decrease in electronegativity and a decrease in the ability to form coordinate covalent bonds.
Quiz: "P-Block Elements in the Periodic Table" Test your knowledge of p-block elements and their properties with this quiz. Explore the characteristics and groupings of boron, carbon, nitrogen, oxygen, fluorine, and helium in the periodic table.
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