Tritium (Hydrogen-3) is a radioactive nuclide with a half-life of 4500 days. It decays to an isotope of helium. Determine the time required fro 90% of the sample of tritium to decay.

Hi. where is the graph?

What? i don’t understand

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).