Sodium is the most reactive.
Neither. Both argon and krypton does not react with nitrogen.
Atoms are isoelectronic when they have the same electron configuration. Therefore, an anion isoelectronic to krypton is bromide. A cation isoelectronic to krypton is rubidium.
Magnesium
Because they are extremely reactive to any moisture in the air.See the Related Questions about the reactivity of the alkali metals (rubidium and cesium are the most reactive of the alkali metals).
Rubidium is much more reactive. It's a member of group 1 like sodium.
Sodium is the most reactive.
reactive
rubidium
Neither. Both argon and krypton does not react with nitrogen.
krypton
No, rubidium is more reactive than potassium. The explanation for this is that rubidium has its single electron farther from the nucleus, where it is more easily removed. However, rubidium is also radioactive, so it is not often studied.
NO!!!! Each element has it own ground state electron configuration. Rubidium is [Kr] 5s1 Strontium is [Kr] 5s2. Notice that strontium has one MORE electron than Rubidium. The symbol [Kr] is shorthand for the full electron configuration of krypton.
the element name is rubidium.
The isotope rubidium-85 is a secondary fission product, from the decay of krypton-85. Also the isotope rubidium-87 is a fission product.
rubidium
Rubidium (Rb) occurs naturally in minerals such as Pollucite, Carnallite and Lepidolite.