The number of F ions in 4.2 gm `AlF_(3)` is (Al = 27, F = 19)

The number of F^- ions in 2.1 g AlF_3 is (N_A=6xx10^23)

Calculate the percentage of : Sodium in sodium aluminium fluoride [Na_(3)AlF_(6)] , to the nearest whole number. (Atomic Mass : Na = 23, Al = 27, F = 19]

Calculate the percentage of : Fluorine in sodium aluminium fluoride [Na_(3)AlF_(6)] , to the nearest whole number. [Atomic Mass : Na = 23, Al = 27, F = 19]

Calculate the percentage of : Aluminium in sodium aluminium fluoride [Na_(3)AlF_(6)] , to the nearest whole number. (Atomic Mass : Na = 23, Al = 27, F = 19]

The total number of AlF_(3) molecule in a sample of AlF_(3) containing 3.01xx10^(23) ions of F^(-) is:

Find the number of proton & electron in Al3+ ion ?

Calculate the percentage of Sodium in Sodium aluminium fluoride. (Na_3 Al F_6) . (F = 19, AI = 27, Na = 23)

Which of the following has more electrons than neutrons? (Mass number of Al, C, O and F is 27, 12, 16 and 19 respectively)