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Chemical Properties of Alkali Metals - 1, Chemical Properties of Alkali Metals - 2 is considered one of the most asked concept.
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Electronic configuration of calcium atom may be written as
The ease of adsorption of the hydrated alkali metal ions on an ion-exchange resin follows the order
Which of the following elements have the outermost
The outermost electronic configuration of potassium is :
Which of the following elements can not be cut with a knife?
The ionic mobility of alkali metal ions in aqueous solution is maximum for
The main oxides formed on combustion of Li, Na, and K more than air are, respectively :
S-Block Elements - The s-block elements of the Periodic Table are those in which the last electron enters the outermost s-orbital. As the s-orbital can accommodate only two electrons, two groups (1 & 2) belong to the s-block of the Periodic Table.
Alkali Metals : Group 1 of the Periodic Table consists of the elements: lithium, sodium, potassium, rubidium, caesium and francium. They are collectively known as the alkali metals. These are so called because they form hydroxides on reaction with water which are strongly alkaline in nature. lithium , sodium , potassium , rubidium, caesium and francium except hydrogen are all alkali metals.
Alkaline Earth Metals : The elements of Group 2 include beryllium, magnesium, calcium, strontium, barium and radium. These elements with the exception of beryllium are commonly known as the alkaline earth metals. These are so called because their oxides and hydroxides are alkaline in nature and these metal oxides are found in the earth’s crust.
Physical Properties of Alkali Metals :
Physical properties of Alkali Metals- 2 :
Melting and Boiling Point
Oxidation state
Chemical Properties of Alkali Metals : The alkali metals are highly reactive due to their large size and low ionization enthalpy. The reactivity of these metals increases down the group.
Chemical Properties of Alkaline Earth Metals :
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