Question

use mendelleev,s periodic table to predict the formulae for the oxides of the following elements. K,C,AI,Si,Ba.​

Answer 1

Answer:

• The element K is in I group of Mendeleev's periodic table in which general formula is R2O. So formula of oxide of K is K2O

• Element C is in group IV of Mendeleev's periodic table .General formula of oxide is R2O so formula of oxide is CO2

• Similarly oxide of Al is Al2O3.

• Formula of Si oxide is SiO2.

• Oxide of Ba is BaO