| Definition | Term | % Correct | |
|---|---|---|---|
| A | The smallest unit of matter | Atom | 97%
|
| B | A substance that has a pH greater than 7.0 | Base | 86%
|
| K | The SI unit of temperature | Kelvin | 82%
|
| J | The SI unit of energy | Joule | 81%
|
| O | Gaseous element whose atomic number is 8 | Oxygen | 81%
|
| P | Subatomic particle with a positive charge | Proton | 79%
|
| N | The dense center of an atom | Nucleus | 78%
|
| L | A substance with a fixed volume, but takes the shape of its container | Liquid | 74%
|
| C | A substance made up of two more chemically bonded elements | Compound | 73%
|
| I | An atom with a different number of neutrons | Isotope | 69%
|
| F | The transition of a substance from a liquid to a solid | Freezing | 68%
|
| W | A transparent liquid that is a common buffer; also required for life | Water | 67%
|
| X | Light radiation that lies between ultraviolet and gamma rays on the spectrum | X-ray | 62%
|
| Z | Metallic element whose atomic number is 30 | Zinc | 62%
|
| Q | What protons and neutrons are made up of | Quark | 61%
|
| D | The movement of particles from higher to lower concentration | Diffusion | 60%
|
| R | When an atom has an unstable nucleus and undergoes decay | Radioactivity | 58%
|
| E | The tendency of an atom to attract electrons | Electronegativity | 56%
|
| V | An electron in the highest, or outermost, energy level | {Valence} electron | 56%
|
| M | A substance with both properties of metals and nonmetals | Metalloid | 50%
|
| G | The lowest possible energy state of an atom | {Ground} state | 48%
|
| Y | The amount of product produced in a chemical reaction | Yield | 47%
|
| H | An element of Group 17. Its name means "salt former" | Halogen | 44%
|
| S | A mixture that is uniform throughout, also called a homogeneous mixture | Solution | 42%
|
| U | Created by Werner Heisenberg that states that the more one is property measured, the other is unknown | {Uncertainty} principle | 30%
|
| T | An element with an atomic number greater than 92 | {Transuranium} element | 9%
|