Helium is unreactive and is chemically inert. Krypton generally compounds with fluorine such as KrF2, KrF4
The noble gases are extremely stable and have an octet (eight electrons in their outer shell with the exception of helium that has two). The far right group on the periodic table contains the noble gases such as helium, neon, argon, krypton, etc.
The noble gases group on the periodic table includes helium, neon, argon, krypton, xenon, and radon. These elements are known for their stable and unreactive nature due to having a full outer electron shell.
Helium, Neon, Xenon, Krypton, Radon, and Argon.
Helium is totally unreactive.
Helium is unreactive.
The noble gases are extremely stable and have an octet (eight electrons in their outer shell with the exception of helium that has two). The far right group on the periodic table contains the noble gases such as helium, neon, argon, krypton, etc.
The noble gases group on the periodic table includes helium, neon, argon, krypton, xenon, and radon. These elements are known for their stable and unreactive nature due to having a full outer electron shell.
Krypton is an unreactive gas.
Helium, Neon, Xenon, Krypton, Radon, and Argon.
Helium and krypton are both noble gases, but they differ in terms of properties. Helium is lighter and has a lower boiling and melting point compared to krypton. Krypton is also more chemically reactive than helium.
The noble gases belong to the noble family. These include helium, neon, argon, krypton, xenon, and radon. They are inert gases that have a full valence shell of electrons, making them stable and unreactive.
Helium is totally unreactive.
Helium is unreactive.
Elements that are extremely unreactive include: Platinum (Pt), Gold (Au), Helium (He), Argon (Ar), Xenon (Xe), Krypton (Kr). These are unreactive because: Platinum and Gold are the bottom two elements in the metals Reactivity series. The rest are inert gases which are all unreactive.
Along with helium, argon neon radon and xenon, krypton is a "noble" gas that had a full outer electron shell, and does not react with other things.
The noble gases group includes helium, neon, argon, krypton, xenon, and radon. These elements are known for their stability due to their full outer electron shells, which makes them generally unreactive.
They readily form compounds with other elements.