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Periodic Table
Periodic Table by Ethan Silvers
| Term | Definition |
|---|---|
| Periodic table | the table scientists use to organize and classify all the elements |
| Element | a substance that can't be broken down into other substances by chemical reactions |
| Element Symbol | The letters that classify an element |
| Atomic Number | the number of protons in an atom the atomic number determines the properties of the atom |
| Atomic Mass | The mass of the protons and neutrons of an atom. |
| Period | Row in the periodic table |
| Group | bunch of similar elements |
| Family | Column on periodic table |
| Metals | Shiny, dense substances that conducts heat and electricity well |
| Nonmetals | Opposite of a metal |
| Metalloid | Some of metal and nonmetal properties |
| Noble Gases | six gasses that does not react with other elements |
| Reactivity | the way something reacts with something else |
| Dmitri Mendeleyev | First one to try to organize the periodic table |
| Trend | A relationship |
| Energy level | A level of how much energy the elements hold |
| Valence electrons | electrons outside the shell |
| Chemical property | A property that cant be observed without tools |
| Physical Property | A property that can be observed without tools |
Created by:
EthSil2020
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