No Hydrogen is highly unstable and reactive. This is because its valency is 1 e- i.e. it will gain an electron to fulfill its duplet(it is that state when the outermost orbit has 2 e-). Deuterium is an isotope of hydrogen which is again very unstable although its duplet is fulfilled the reason for this is not known to me.
Neon is chemically unreactive and stable
Noble gases have completely filled orbitals, hence they are stable and chemically inert.
Group (or family) 18, also known as the noble gases, are elements that are completely stable and rarely react with other elements.
Hydrogen is highly flammable and can easily explode. Helium is a more stable gas.
Zinc is unreactive to cold water, but will react with steam to give zinc oxide and hydrogen.
Hydrogen, followed by oxygen. Argon is unreactive.
No. Lithium is highly reactive.
Chloral hydrate is a gemdiol still highly stable because CCl3C(OH)2H is stablize by intramolecular hydrogen bonding. see related links for more information.
Its reactivity depends upon the conditions , in acids and alkalies it is highly reactive with pure water and air it is unreactive, although in reactivity series it higher than hydrogen.
Hydrogen-1 and hydrogen-2 isotopes are radioactively stable.
Highly reactive elements can be kept from reacting by holding them in containers that are made of elements that are very unreactive (or at least not reactive to the highly reactive elements they contain). Unfortunately, the 6 known stable inert elements exist at room temperature only in gas form, so do not make good containers; however, some substances such as glass are very resilient and their molecular structures tend to be stable and unreactive (which is why glass is a common material for beakers and other containers to hold a wide -- but not unlimited -- variety of chemicals).
Chlorine is number 17 on the periodic table, so yes it is stable. It's a poisonous gas and it is NOT unreactive. The main thing that chlorine reacts with is sodium, making sodium chloride, A.K.A. table salt.