Yes, both explode when you drop them in a pool. But unlike rubidium, cæsium melts under body heat and is yellow.
Rb
Rubidium (Rb) shares more similar properties with cesium (Cs) than with strontium (Sr). Both Rb and Cs are alkali metals, which means they have similar chemical properties, including high reactivity and the tendency to form +1 cations. In contrast, strontium is an alkaline earth metal, exhibiting different reactivity patterns and a +2 oxidation state. Thus, Rb is more closely related to Cs in terms of chemical behavior and properties.
You think probable to other alkali metals: Na, K, Cs, Rb.
Any element in the alkali metal group would have similar chemical properties, for example they all react easily to water.
Magnesium, strontium , and barium belong to group 2A of the periodic table. These have two valence electrons in their outermost shell. So these three elements have similar chemical properties. But the other given elements do not lie in same group so they have different chemical properties.
Rb
Rubidium (Rb) shares more similar properties with cesium (Cs) than with strontium (Sr). Both Rb and Cs are alkali metals, which means they have similar chemical properties, including high reactivity and the tendency to form +1 cations. In contrast, strontium is an alkaline earth metal, exhibiting different reactivity patterns and a +2 oxidation state. Thus, Rb is more closely related to Cs in terms of chemical behavior and properties.
The electron configurations of H, Li, Na, K, Rb, and Cs are similar in that they all have one valence electron in their outermost energy level. These elements belong to the alkali metal group in the periodic table and tend to exhibit similar chemical properties due to their outermost electron configuration.
Smallest to largest is going down the group 1. I.e. Li is smallest<Rb<Cs
You think probable to other alkali metals: Na, K, Cs, Rb.
The donor
H Li Na K Rb Cs Fr
The alkali metals are: Li, Na, K, Rb, Cs, Fr.
Magnesium, strontium , and barium belong to group 2A of the periodic table. These have two valence electrons in their outermost shell. So these three elements have similar chemical properties. But the other given elements do not lie in same group so they have different chemical properties.
Any element in the alkali metal group would have similar chemical properties, for example they all react easily to water.
It is a metallic element in the alkali family
group 1 is Li, Na, K, Rb, Cs and Fr.