Question
Chemistry Question on Modern Periodic Law And The Present Form Of The Periodic Table
Which noble gas has least tendency to form compounds ?
A
Ar
B
He
C
Kr
D
Ne
Answer
He
Explanation
Solution
Noble gases, also known as Group 18 elements or inert gases, are characterized by their highly stable electronic configurations. These elements have a full valence shell, making them highly unreactive and less likely to form compounds with other elements.
Among the noble gases, Helium (He) is the least likely to form compounds. It has the lowest atomic number and consists of only two electrons, which completely fill its first energy level. With a full valence shell, Helium does not readily gain, lose, or share electrons with other elements to form compounds.
Therefore, Helium (He) has the least tendency to form compounds among the noble gases.