Question:
Amongst SF4, XeF4, CF4 and H2O, the number of species with two lone pair of electrons is _____.
Amongst SF4, XeF4, CF4 and H2O, the number of species with two lone pair of electrons is _____.
Updated On: Feb 4, 2026
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Correct Answer: 2
Solution and Explanation
The correct answer is 2
\(XeF_4\)and \(H_2O\) have 2 lone pairs.
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Concepts Used:
P-Block Elements
- P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
- P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.
P block elements consist of:
- Group 13 Elements: Boron family
- Group 14 Elements: Carbon family
- Group 15 Elements: Nitrogen family
- Group 16 Elements: Oxygen family
- Group 17 Elements: Fluorine family
- Group 18 Elements: Neon family