Term |
Definition |
Matter |
Anything that has mass and takes up space |
Mass |
The material that matter is made up of |
Volume |
How much space matter takes up |
Density |
D=m/v The amount of material/stuff mass in a specific volume of space |
Atom |
Smallest part of an element, the building blocks of all matter |
Electron |
Particle of an atom with a negative charge, moves around the nucleus and has an attractive force that allows it to bond with other atoms creating everything in the universe |
Proton |
Particle of an atom with a positive charge located inside the nuecleus |
Neutron |
Particle of an atom with a neutral / no charge located inside the nucleus along with the proton |
Periodic Table |
Large grid that identifies and classifies all the elements by their chemical and physical properties. |
Element |
The simplest substances that cannot be broken down/ they make up all matter in the universe |
Periods/Rows |
Rows that tell how many energy levels each elements has for the electrons to move around |
Groups/families/Columns |
Columns that tell how many valence electrons each element has /the number of electrons that can move on its outer shell |
Valence Electrons |
The electrons that move on the outer shell / energy level of an atom |
Atomic Number |
How many protons an element has inside the nucleus / usually is same # of neutrons and electrons |
Atomic Mass |
The measurement of the mass for an elements atoms |
Chemical Property |
The ability of substances to combine with one another forming new and different compounds and molecules |
Physical Property |
The state of matter and appearance of a substance |
Ionic Bond |
When elements either lose or gain an electron during bonding |
Covalent Bond |
When electrons share electons during bonding |
Chemical Change / Reaction |
Elements bond together through the attractive force of electrons creating some type of reaction |
Compound / Molecule |
Two or more elements combine together in a specific ratio / pattern creating a whole, new and different substance |
Mixture |
Two or more elements combine together keeping their original properties they DO NOT CHANGE into a whole substance / compound |
Nobel Gases |
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