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Chem3401_Wk1
| Question | Answer |
|---|---|
| English system | Common measurements of commerce including foot, pound and gallon |
| Metric system | Measurements used in scientific work including gram, meter and liter. |
| Subatomic particles | Very small particle that is a building block for atoms including electrons, protons and neutrons. |
| Periodic table | A visual representation of the periodic law; arrangement of the elements in order of increasing atomic number such that the elements having similar chemical properties are positioned in vertical columns. |
| Electron behavior | Electrons move about an atom’s nucleus in subspaces called shells, subshells and orbitals. |
| Classification of elements | Elements can be classified into four categories; noble gases, representative elements, transition elements, and inner transition elements |
| Minerals | Elements needed in small amounts that must be obtained through food. |
| Changes in matter | Changes that can occur are grouped into two categories; physical change and chemical change. |
| Pure substances | A pure substance can be classified as either an element or a compound on the basis of whether it can be broken down into simpler substances. |
| Elements in the body | Four elements found in the human body are present at levels great than 5%; hydrogen, oxygen, carbon and nitrogen |
| Matter | Anything that has mass and occupies space. |
| Physical states of matter | Matter is a solid, liquid or gas based on its shape and volume. |
| Types of molecules | Molecules can be separated into two categories |
Created by:
blaisemyers
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