| A | B |
|---|
| Name | Definition |
| 1st Law of Thermodynamics | Conservation, energy cannot be created nor destroyed |
| 2nd Law of Thermodynamics | Entropy, systems/processes tend toward disorder or chaos |
| 3rd Law of Thermodynamics | Efficiency, cooler systems tend toward less disorder |
| Actinides | 1st f-block level (4f), moved below the periodic table |
| Alkali Metals | Most reactive metals |
| Alkaline Earth Metals | Important metals for life and 2nd most reactive metals |
| Atomic Radius | Size of an Atom (Francium is the biggest) |
| Atomic Theory | All matter is made of small particles |
| Chemical Property | Property based on the atoms that can only be tested through changing it |
| Compound Laws (DC and MP) | Atoms combine in small whole number ratios verifiable by mass |
| Electron Configuration | System of letters and numbers detailing where electrons are in an atom |
| Electronegativity | Atom's desire for more electrons |
| Excited State | Electrons that gained enough energy to hop an energy level |
| Gas Laws | 1st Laws of Chemistry, link Vol, Temp, Moles, and Pressure with numbers |
| Grounded State | Electrons at the lowest stable energy level |
| Groups/Families | Columns arranged by similar properties |
| Halogens | Most reactive non-metals |
| Hydrogen Group | Group of one poser element that acts like a metal, but isn't |
| Transition Metals | Metals with flexible electron layers (multiple possible charges) |
| Ionization Energy | Energy needed to peel an electron from an atom |
| Kinetic Molecular Theory | All particles are in constant random motion |
| Lanthanides | 2nd f-block level (5f), moved below the periodic table |
| Law (Scientific) | Description of how things occur (often with math) based on many tests |
| Law of Conservation (Matter) | Matter cannot be created nor destroyed, just moved and changed |
| Laws of Thermodynamics | The rules of how energy behaves |
| Melting Point | Temperature at which a solid becomes a liquid |
| Noble Gases | Non-reactive gases with no electronegativity [last group] |
| Percent Composition | Amount of a part compared to the whole (normally by mass) |
| Periodic Law | If elements are arranged by atomic number, trends will emerge |
| Periodic Table | Organization of elements by properties and atomic number |
| Periodic Trends | Repeating patterns of properties by proper organization |
| Periods | Rows arranged by atomic number |
| Physical Property | Property based that can be tested without changing the substance |
| Poor Metals | Metals beneath the metalloids (Al, Ga, In, Tl, Sn, Pb, Bi, Po) |
| Reactivity | How fast (and strongly) elements tend to form chemical bonds |
| Theory (Scientific) | Verified explanation of something, based on many facts repeatedly confirmed |
| Chemical Bonds | Energy holding two atoms together in a compound |
