Solving a problem in chemistry section 5 point 59

Solving a problem in chemistry section 5 point 59

59. Atoms of any public elements of the fourth period of the periodic system form a oxide is, appropriate to their the highest degree oxidation E2O5? Which one of them gives a gaseous compound with hydrogen? Make Formula acids corresponding to these oxides, and draw them graphically?

Additional information:

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)