Nobel gasses.
This property can be useful in containing substances, like if you want to contain liquid nitrogen you would use an iron container (or practically any other element because nitrogen is almost inert) because the two elements don't interact with each other.
solids
The element family that iron belongs to on the periodic table is the transition metals family. Other elements in this family include cobalt and nickel.
A chemical element is a substance with only one type of atom in it (e.g. only carbon atoms). The known chemical elements are arranged on the Periodic Table of the Elements. Every element has it's own chemical symbol, which is used as a scientific shorthand for quick elemental notation (e.g. Carbon = C, Promethium = Pm).
nitrogenous base consist of only three element nitrogen, oxygen and hydrogen, so other elements are not part of nitrogenous base.
Noble gases, such as helium and neon, would be least likely to occur in an organic functional group since they do not typically form chemical bonds with other elements.
Argon is the least likely in the list to react with other elements, because argon is a noble gas and none of the other elements in the list is.
Hydrogen is the least dense of all the elements and all other known substances.
metallic
The most reactive elements are alkali metals and halogens.
Francium is the element least likely to be found in nature in elemental form because it is highly radioactive and quickly decays into other elements. Its short half-life and rarity make it challenging to find naturally occurring samples of francium.
These are the so-called noble gases.
An oxide is a compound that contains oxygen and at least one other element that is less electronegative than oxygen.
noble gases, or inert gases they are the same thing and they are group 18 they have full valence electrons so they are unlikely to react with other elements
The elements in the family Group 0 - Inert Gases (exc. Radon) will not usually combine with other substances, as this group is highly unreactive. Inert Gases; Helium Neon Argon Krypton Xenon (Radon)
The likelihood of an element to bond is called its electronegativity. This property is a measure of an element's ability to attract and share electrons with other atoms in a chemical bond. Elements with higher electronegativities are more likely to form bonds with other elements.
Group-18 elements least react with other elements. They are inert in nature. They are called noble gases.Elements in group 18 are less likely to react with any other elements. This group is made out of the noble gases. Its members are He, Ne, Ar, Kr, Xe and Rn.