Look at any Periodic Table:
Beryllium #4
Magnesium #12
Calcium #20
Strontium #38
Barium #56
Radium #88
All alkali (not alkaline-earth) metals are extremely reactive with water, but within the group, lithium is the least reactive.
The periodic table goes from left to right if your looking for re-activity (with the exception of hydrogen). Lithium, Sodium, Potassium, Rubidium, Cesium, and Francium are the most reactive elements. The Noble gases are the least reactive elements which include Argon, Neon, Helium, Krypton, Xenon, Radon, and (arguably) Ununoctium. Hope that helps!
Pollution makes the Earth angry. At least, in a metaphorical sense.
the earth's core
how many families of at least two people living together are on the earth
All alkali (not alkaline-earth) metals are extremely reactive with water, but within the group, lithium is the least reactive.
All alkali (not alkaline-earth) metals are extremely reactive with water, but within the group, lithium is the least reactive.
Yes, all alkaline earth metals are reactive because they have two electrons in their outer shell, making them prone to forming bonds with other elements to achieve a stable electron configuration. However, their reactivity varies among the alkaline earth metals, with beryllium being the least reactive and barium being the most reactive.
The order of reactivity of alkaline earth metals decreases down the group. This means that the reactivity decreases as you go from beryllium to radium. Beryllium is the least reactive, while radium is the most reactive.
Neither. Chlorine is among the most highly reactive nonmetal elements, but fluorine and oxygen are even more reactive, as are the heavier alkali and alkaline earth metals.
Beryllium is the alkaline earth element with the least massive atoms.
Beryllium is the least reactive alkali earth metal because it has a stable electron configuration with two electrons in its outer shell. This makes it reluctant to lose or gain electrons to form compounds. Additionally, beryllium forms a protective oxide layer on its surface when exposed to air, which further decreases its reactivity.
The periodic table goes from left to right if your looking for re-activity (with the exception of hydrogen). Lithium, Sodium, Potassium, Rubidium, Cesium, and Francium are the most reactive elements. The Noble gases are the least reactive elements which include Argon, Neon, Helium, Krypton, Xenon, Radon, and (arguably) Ununoctium. Hope that helps!
they all have at least one electron
The most reactive elements are located in the alkali metals group on the far left side of the periodic table. The least reactive elements are the noble gases, found in the far right group.
noble gases are least reactive
no, it is very reactive.