Atomic Structure

5. physical synthesis
7. number of outer electron shells
8. maximum number of electrons occupying the L shell
10. atomic size
11. a number indicating the number of protons and neutrons
14. vertical rows in the periodic system
15. the energy released by an atom to accept an electron
16. Atomic particles are located outside the nucleus
17. engineering materials on the nanometer scale to obtain desired properties
18. the number indicates the number of electrons

1. chemical synthesis
2. positively charged atomic particles
3. substitution elements that form in rock-forming minerals(LTJ)
4. atomic radius in one group from top to bottom
6. atomic radius in one period from left to right
9. horizontal rows in the periodic system
12. atomic particles have no charge
13. theoretical atomic models that have assumed electron trajectories similar to the solar system