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Periodic Table
| Term | Definition |
|---|---|
| matter | anything that has mass and takes up space |
| mass | the material that matter is made up of |
| volume | how much room it takes up |
| density | D=m/v the amount of stuff matter takes up in a space |
| atom | The smallest part of an element |
| electron | particle of an atom with a negative charge |
| proton | particle of an atom with a positive charge |
| nuetron | part of an atom with a neutrul charge |
| Periodic Table | large grid that identifies elements |
| element | the simplest substance that can not be broken down |
| periods/rows | rows that tell the how many energy levels each element has |
| groups/familys | columns that tell how many valence electrons an element has |
| valence electrons | the electrons that move on the outer shell |
| atomic numbers | how many protons an element has |
| atomic mass | the measurement of the mass for an element |
| chemical property | the ability of substances to combine and create a new substance |
| physical property | the state of matter and appearance of a substance |
| ionic bonds | when elements lose or gain an electron while bonding |
| covalent bond | when elements share electron while bonding |
| chemical change | elements bond together through an attractive force creating an reaction or change |
| compound | two or more elements chemically combined together |
| mixture | two or more elements that are not chemically combined |
| Nobel Gases | all of the elements in group 18 |
| Halogens | all of the elements in group 17 |
| Alkali Metals | all of the elements in group 1 |
| Metalloids | elements between metal and non-metals |