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Atomic Theory
| Term | Definition |
|---|---|
| Neutron | a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen |
| Electron | a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids. |
| Proton | positive electric charge equal in magnitude to that of an electron, but of opposite sign |
| Element | broken down matter into simpler substances and are primary constituents of matter |
| Atom | the basic unit of a chemical element |
| Malleable | the ability to be hammered or pressed permanently out of shape without breaking |
| Luster | gentle sheen or soft glow |
| Ductile | ability to be drawn into a thin wire |
| Corrosive | rusting |
| Density | mass of an object/thickness |
| Nobel gas | A group of elements that are odorless, colorless, monatomic gases, with low chemical reaction |
| Halogens | any of the elements occupying group (17) of the periodic table |
| Transitional metals | Any of the set of metallic elements occupying a central block (4-12) in the periodic table |
| Alkali Metals | any of the elements occypying Group 1A (1) of the periodic table |
| Alkaline Earth metals | any of the elements occupying group (2) of the periodic table |
| Alloy | combing two or more metallic elements |