500
Matter is divided into _______ and ___________. ___________ are _____________. There are two types of _____________; we have _______________ and _________________. ________________ can be divided into ______________________ and _______________. All _____________________ contain ___________. ____________ consist of ___________________ and ________________. Inside the _______________ we have the _________________ and the _______________.
Mixtures, Pure substances, Mixture, Solutions, Solutions, Homogeneous, Heterogenous , Pure substances, compounds, elements, atoms, atoms, a nucleus and electrons surrounding it. Nucleus, protons, neutrons.