Home Chemistry s- Block Elements (Alkali and Alkaline earth metals)

s- Block Elements (Alkali and Alkaline earth metals)

Group 1 and Group 2 elements: General introduction, electronic configuration, occurrence, anomalous properties of the first element of each group, diagonal relationship, trends in the variation of properties (such as ionization enthalpy, atomic and ionic radii), trends in chemical reactivity with oxygen, water, hydrogen and halogens; uses. Preparation and Properties of Some Important Compounds: Sodium carbonate, sodium chloride, sodium hydroxide and sodium hydrogencarbonate, biological importance of sodium and potassium. CaO, CaCO3, and industrial use of lime and limestone, biological importance of Mg and Ca.

11th Chemistry NCERT notes

Some S-Block compounds

Sodium Hydroxides (Caustic Soda), NaOH: Preparation: Electrolysis of Brine: Caustication of Na2CO3 (Gossage’s method): Since the Ksp(CaCO3) < Ksp(Ca(OH)2), the reaction shifts towards right. Properties: It is white crystalline,...
11th Chemistry NCERT notes

Group 2 Element: Alkaline Earth Metals

Alkaline Earth Metals: They were named alkaline earth metals since they were alkaline in nature like alkali metals oxides and they were found in the...
11th Chemistry NCERT notes

Group 1 Elements: Alkali Metals

Group (1 & 2) belong to the s-block of the Periodic Table. Group 1 consists of: lithium, sodium, potassium, rubidium, caesium and francium and...