Cs has a lower ionisation energy than Na.
Cs has more electrons (44 more electron) than Na. The electrons in the outer electronshell are further away from the positive nucleus because there are many more electron shells.
Because the valence electrons are further from the nucleus they are not held as tightly by the atom, this means that it takes less energy to remove the electron in the outer electron shell from Cs.
So it is more reactive.
Potassium is not the most reactive metal. However, it's considerably more common than the more reactive ones.
Potassium is reactive because it's an alkali metal with several screening shells of non-valence electrons between the nucleus and its single valence electron. This makes it relatively easy to strip away the valence electron. Rubidium and caesium have even more screening shells, which is why they're even more reactive (francium would presumably be more reactive still if it weren't so radioactive that it's impossible to collect enough of it to measure its chemical properties).
the valence electron has a larger orbit than the orbit of the valence electron of any other orbit of s block elements
The most reactive metal is caesium or francium; reactive metals have a very low ionization energy.
Sodium is in the middle of those 2
The high reactivity of cesium comes from its tendency to give up the one electron in its outermost shell and become a cesium 1+ ion, which is more stable. In cesium chloride, the cesium is already in its stable ionic form.
Lithium is more reactive to water than magnesium because while Lithium will explode and generally destroy the container it is in, magnesium will cause the water to violently bubble.
Magnesium weight more than ash. White ash is magnesium oxide.
Magnesium weight more than ash. White ash is magnesium oxide.
Sodium is in the middle of those 2
Cesium and magnesium are both metals. According to Pauling's scale, they have an electronegativity difference lesser than 1.7. Hence, they cannot form an ionic compound.
Plutonium is more reactive than Cesium.
sodium is more reactive than magnesium!
The high reactivity of cesium comes from its tendency to give up the one electron in its outermost shell and become a cesium 1+ ion, which is more stable. In cesium chloride, the cesium is already in its stable ionic form.
sodium is more reactive than magnesium!
Francium is considered to be more reactive than caesium.
I'd predict that francium would combine less readily than cesium.
because it is less stable
Lithium is more reactive to water than magnesium because while Lithium will explode and generally destroy the container it is in, magnesium will cause the water to violently bubble.
Magnesium weight more than ash. White ash is magnesium oxide.
Magnesium weight more than ash. White ash is magnesium oxide.