strontium
it is the rare earth element cerium
Carbon is considered highly reactive. This is due to the fact that it can react with many elements on Earth.
Berylium is a alkaline earth metal and is fairly reactive. Argon is a noble gas that is very unreactive. Therefore Be is more reactive
Carbon is a reactive chemical element if it is in gaseous form , naturally carbon exists as Coke (Coal), Diamond, Graphite and other allotropic (Solid) forms and all these forms of carbon are almost nonreactive.
cerium is reactive, if hit with a sharp object it will combust and release nitrogen and hydrogenated carbon. it is the most stable of the rare earth elements though
Because there is not much of it available at the Earth's surface.
alkali metals
No. The alkali and alkaline earth metals are very reactive.
It wasn't, the flint is a rock found naturally in the earth. In prehistoric times men chipped flints to make knives because of the sharp edge they aquired, but only before they started working metal.
Radium is the most reactive in this group.
The alkali metals have a valence of 1 while the alkaline earth metals have a valence of 2. The alkali metals are generally lighter, softer, more reactive, and have lower melting points than the alkaline earth metals.
The alkali metals have a valence of 1 while the alkaline earth metals have a valence of 2. The alkali metals are generally lighter, softer, more reactive, and have lower melting points than the alkaline earth metals.