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Why hydration enthalpy of alkali metal ion decrease with increase in atomic radii?
Wiki User
∙ 10y ago
Li+ has maximum degree of hydration and for this reason lithium salts are mostly hydrated
Wiki User
∙ 10y ago
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What is the general configuration of s-block elements?
The s-block elements consist of the alkali metals and alkaline earth metals, including hydrogen and helium. Most reactions of s-block elements involve the loss of an electron to form a singly positively charged ion.
What happens to the chemical reactivity of alkali metals as you increase atomic numbers?
The chemical reactivity of alkali metals increase when the atomic number increase.
Which alkali metal has lowest ionic mobility in water?
Lithium will have least ionic mobility as it has the greatest hydration energy.
Does the first ionization energy increase or decrease from top to bottom in periodic table for the alkali metal family?
It decreases as the atom radius gets larger, so it decreases from top to bottom.
Why alkali metal density increase going down the group?
Atomic-volume of alkali metals increases down the group ,But increase in mass dominates over increase in volume ,since density=(mass)/(volume) ,density increases down the group
Why Alkaline earth metals are harder than alkali metals?
It is because alkali metals are larger in size than alkaline earth metals.Also, the effective nuclear charge is more in case of alkaline earth metals. This makes their ionization enthalpies larger than alkali metals.
What is the general configuration of s-block elements?
The s-block elements consist of the alkali metals and alkaline earth metals, including hydrogen and helium. Most reactions of s-block elements involve the loss of an electron to form a singly positively charged ion.
What happens to the chemical reactivity of alkali metals as you increase atomic numbers?
The chemical reactivity of alkali metals increase when the atomic number increase.
What lead to the increase in the strength of alkali?
What lead the increase in strength of alkali was to improve strength and reliability. Strengths and drying shrinkage is the reasons for the studies to improve alkali.
Which alkali metal has lowest ionic mobility in water?
Lithium will have least ionic mobility as it has the greatest hydration energy.
Does the first ionization energy increase or decrease from top to bottom in periodic table for the alkali metal family?
It decreases as the atom radius gets larger, so it decreases from top to bottom.
Lithium is better reducing agent than cesium in aqueous solution?
, the alkali metals are powerful reducing agents. Lithium in aqueous solution is as strong a reducing agent as Caesium. This is probably due to high hydration energy of small lithium ion, which compensates for high ionisation energy. The hydration energy of alkali metal ions follows the order: Li+ > Na+ > K+ > Rb+ > Cs+ . Due to extensive hydration, Li+ ion has the highest hydration energy, as a result of which reduction potential of Li is higher than other alkali metals. Thus most powerful reducing agent in solution is lithium.
What elements on the table are most reactive why?
Sodium, Potassium, and other alkali metals are very reactive due to the low ionization enthalpy. Flourine, Chlorine and other halogens are very reactive due to the high negative electron gain enthalpy.
What element are most reactive on the table?
Sodium, Potassium, and other alkali metals are very reactive due to the low ionization enthalpy. Flourine, Chlorine and other halogens are very reactive due to the high negative electron gain enthalpy.
Why does the melting point of an alkali metal decrease as the radius gets bigger?
because Joseph broadly
Will the pH change when an alkali is added to an acid?
Yes. The pH will increase.
Why alkali metal density increase going down the group?
Atomic-volume of alkali metals increases down the group ,But increase in mass dominates over increase in volume ,since density=(mass)/(volume) ,density increases down the group
