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Vocabulary for matter and elements

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Term
Definition
Matter   Anything that takes up space and has mass  
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Mass   The material the matter is made of  
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Volume   How much Room/Space an object takes up  
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Density   The amount of stuff matter takes up within a specific space  
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Atom   smallest part of an element  
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Electron   particle of an atom with a negative charge  
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Proton   part of the atom with a positive charge  
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Neutron   Particle of an atom with a neutral charge  
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Periodic table   Large grid that identifies and classifies all of the elements  
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Element   The simplest substance that can not be broken down  
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Valence Electrons   The electrons that move on the outer shell  
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Atomic number   how many protons has inside the nucleus  
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Atomic Mass   The measurement of the mass for an elements atom  
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Chemical property   The ability of substances to combine with one another creating a new substance  
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Physical property   The states of matter and apperences  
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ionic bond   When elements lose or gain an electron during bonding  
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Covalent bond   When elements share electrons during bonding  
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Chemical change   When 2 substances form together to create a new substance  
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Mixture   two or more substances chemically combined but do not make a new substance  
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Nobel Gasses   The most stable elements because they have 8 electrons  
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Alkali Metals   They are very reactive because they have 1 valence electron  
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Metalloids   3-7 valence electrons  
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