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Newnam - Atoms & PT
Atoms & Periodic table
| Question | Answer |
|---|---|
| A very small particle that makes up most types of matter | Atom |
| Central part of the atom; Contains protons and neutrons | Nucleus |
| Area around the nucleus where electrons are most likely to be found | Electron Cloud |
| Negatively charged; Located in the electron clouds around the nucleus | Electron |
| electrons in the outermost energy level of an atom; determine the chemical properties of an element | Valence Electrons |
| Positively charged; Located in the nucleus; Mass is 1 amu; Determine the identity of the element | Proton |
| Neutral or no charge; Located in the nucleus; Mass is 1 amu | Neutron |
| Atom that has an electric charge ( + or - ) due to loss or gain of electrons | Ion |
| The number of protons in the nucleus of each atom of that element | Atomic number |
| The total number protons and neutrons in the nucleus of each atom of that element | Mass number |
| weighted average mass of an atom of an element | Average Atomic Mass |
| luster,malleable,conductor,color,shape, mass are all | Physical Properties |
| describe how a substance reacts (Example: flammability) | Chemical Properties |
| chart to help organize elements; In order by atomic number | Periodic Table |
| rows in the periodic table; all elements have the same number of energy levels or shells | Period |
| columns in the periodic table; all elements have similar properties | Group |
| shiny, good conductors,mostly solids, malleable, ductile, left & middle | Metals |
| dull, poor conductors,mostly gasses,right side of periodic table | NonMetals |
| have properties of metals and nonmetals; found between metals and nonmetals | Metalloids |