SCIENCE
CHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
hydrogen
|
|
|
carbon dioxide
|
|
|
neon
|
|
|
oxygen
|
Detailed explanation-1: -Neon, like all noble gases, has a full valence shell. Noble gases have eight electrons in their outermost shell, except in the case of helium, which has two.
Detailed explanation-2: -Neon is a chemical element with symbol Ne and atomic number 10. Classified as a noble gas, Neon is a gas at room temperature.
Detailed explanation-3: -Because noble gases’ outer shells are full, they are extremely stable, tending not to form chemical bonds and having a small tendency to gain or lose electrons.
Detailed explanation-4: -Helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) and radon (Rn) are the elements of group 18. The members of the group have eight electrons in their outermost orbit (except helium which has two electrons). Thus, they have a stable configuration.