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Physical Sci Vocab
Term | Definition |
---|---|
mixture | two or more substances combine together keeping their original properties, they do not change into a new substance/compound |
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 nucleus |
nucleus | 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 of the elements by their chemical and physical properties |
element | the simplest substances that cannot be broken down / they make up all of the matter in the universe |
periods | rows that tell how many energy levels each element has for the electrons to move on |
group | columns that tel how many valence each element has/the number of electrons that can move on its outer shell/energy level |
valence electrons | the electrons that move on the outer shell/energy level of an atom |
chemical reaction | elements bond together through the attractive force of electrons creating some type of reaction and change |