The atomic radii of Na, K and Mg are 186, 227 and 160 pm, respectively. Explain the differences.

The atomic radii of Cl, I and Br are 99, 133 and 114 pm, respectively.

The ionic radii of F^Theta and Na^o+ are 133 and 98 pm, respectively.

The solubility of o-nitrophenol and p-nitrophenol is 0.2 g and 1.7 g / 100 g of H_2O respectively Explain the difference.

In A^(+)B^(-) ions compound, radii of A^(+) and B^(-) ions are 180 pm and 187 pm respectively. The crystal structure of this compound will be

In Dobereiner's triads Li, Na, K, the atomic masses of lithium and potassium are 6.9 and 39.1 respectively, then what will be the atomic mass of sodium?

Alcohols (R-OH), phenols (Ar-OH) and carboxylic acids (R-COOH) can undergo ionization of O-H bond to give away proton H^(+) , yet they have different pK_4 values, which are 16, 10 and 4.5 respectively. Explain.

The main oxides formed on combustion of Li, Na and K in excess of air respectively are