Chemistry

3. Zero intensity
5. Contains the same mass as protons but does not have an electrical charge.
7. The representation of a system that helps predict how a system behaves.
10. The instrument used to observe the color components of any light source.
12. A pattern of frequencies by a given element.
13. Positively charged subatomic particles
14. is a mixture of different compounds that can be seen as an individual substance.
16. The area in which most energy is present.
18. Horizontal rows on the Periodic Table.
19. Shows the full range of frequencies and wavelengths of electromagnetic radiation.
20. Atoms of the same elements that contain a different number of neutrons are what of each other.

1. When more than one element comes together.
2. Force of attraction between two atoms that holds them together.
4. A unit of electrical energy.
6. The manipulation of objects from 1 to 100 nanometers in scale.
8. This is when the number of electrons that may be lost or gained during chemical bonding.
9. Unit of wave frequency.
11. When atoms clump together to form a molecular unit that acts as a single electrically charged group.
15. The person who oversaw the gold foil experiment.
17. This forms when the components are in different phases.
20. matter that contains two or more elements or compounds.