Which alkali metal chloride is the most stable?

Therefore, the stability of alkali metals decreases down the group i.e. from lithium to caesium. But there comes an exception that potassium chloride being more stable than sodium chloride. The reason behind this is that the atomic size of potassium and chlorine is almost similar.

What do alkali metals do in order to be stable?

Alkali metals have 1 valence electron on their outer shell. They are more stable when they have 8 valence electrons, so they want to lose that valence electron. They do this by bonding with other elements. When they lose their 1 valence electron, they have a full octet and are therefore stable.

Which alkali metal has highest thermal stability?

alkali carbonates
As the electropositive character increase down the group, the stability of alkali carbonates increases. Hence more thermal energy required for the decomposition of alkali carbonates down the group. Hence, Rb2CO3 have more thermal stability than others.

Which alkali metal is stable?

Of the alkali metals, only lithium reacts with nitrogen, and it forms a nitride (Li3N). In this respect it is more similar to the alkaline-earth metals than to the Group 1 metals. Lithium also forms a relatively stable hydride, whereas the other alkali metals form hydrides that are more reactive.

What is the solubility order of chlorides of alkali metals?

– Now, if we combine all these factors, then the solubility of the chlorides of the alkali metal decreases down the group. – Therefore, the order is NaCl > KCl > RbCl > CsCl.

Which one of the alkali metals forms the most stable complexes?

Alkali metals react with dry hydrogen at about 673K to form colourless crystalline hydrides. All the alkali metal hydrides are ionic solids with high melting points. The stability of hydrides decrease from Li to Cs.

What is the order of thermal stability of alkali metal carbonates?

MgCO3>CaCO3>SrCO3>BaCO3.

Which has highest thermal stability?

In salts of monatomic anion, thermal stability is directly proportional to lattice energy i.e. smaller is interatomic distance higher is the thermal stability. So BeCl2which has the smallest cation has the highest lattice energy and hence has highest thermal stability.

Which alkali metal hydride is most stable?

RbH
RbH.