About this Product. Japanese Holly Fern is made for moist, shady areas, even in climates where winters are harsh and extreme weather can blight lesser plants. An evergreen hardy fern, it should be a mainstay of your shade border, where it will offer elegant form and fresh color year-round.
The elements that are gases at room temperature include hydrogen. They also include all the inert or noble gases, which are those elements in Group 18: helium, neon, argon, krâ¦ypton, xenon and radon. We also know that the halogens fluorine, chlorine and bromine are gases at room temperature (20Â°C). That leaves nitrogen and oxygen as the last of the elements that are gases at room temperature. All of these elements are nonmetals or halogens or inert gases. LAUGH OUT LOUD.
Group VIIIA (new Group 18) are called the noble gases. They used to be called the inert gases, but Neil Bartlett at UC, Berkeley showed that the noble gases could be made into compounds. Their reactivity is minimal. The noble gases are; Helium, Neon, Argon, Krypton, Xenon, and Radon. Radon is toxic, as it is radioactive. The other elements that are gases at room temperature are: fluorine, F2; chlorine, Cl2; oxygen, O2; nitrogen, N2; and hydrogen, H2. All these gases are diatomic. The halogens, fluorine and chlorine, are highly reactive, and very toxic. Oxygen and nitrogen are reactive, or can be made to react. They are not toxic per se. Hydrogen is, of course, very reactive. Hydrogen and nitrogen are not toxic, but they will suffocate you, as would the noble gases, if you ingested pure forms of them, and your oxygen supply was quenched.