BJ - Crossword Labs

4. A change in which one or more substances are converted into different substances.
7. He is considered the most famous scientist of the 20th century
8. Negatively charged particle of an atom.
9. The simplest form of matter.
11. It is used as an alternative to argon in the light bulbs.
12. A mixture of having only one phase.

1. A suspension in another substance of particles with a dimension of 1.0 - 1000 nm.
2. It is used for protection from nuclear disasters.
3. An educated guess.
5. A non uniform mixture of substance having two or more phase with definite boundaries between phase.
6. The most important of all alloys.
10. An atom or molecule having an electric charge.
12. The elements in group 7A of the periodic table.
13. The ability to do work.