GK
CHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
They are not found on the Earth
|
|
|
They do not have any valence electrons
|
|
|
They have a complete set of valence electrons
|
|
|
They are all gases
|
Detailed explanation-1: -Noble gases are odorless, colorless, nonflammable, and monotonic gases that have low chemical reactivity. The full valence electron shells of these atoms make noble gases extremely stable and unlikely to form chemical bonds because they have little tendency to gain or lose electrons.
Detailed explanation-2: -Group 18 of the periodic table consists of elements helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). These elements are said to be chemically inert, i.e., they are not reactive, as they do not form bonds.
Detailed explanation-3: -Noble gases are inert and do not form compounds like other elements because of their high ionization energy and close shell electronic configuration.
Detailed explanation-4: -Because most noble gases do not form compounds, they do not have electronegativities.
Detailed explanation-5: -Noble gas atoms already have entire outer shells, therefore they aren’t inclined to lose, gain, or share electrons. This is why noble gases are chemically inert and do not participate in reactions.