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physical science

TermDefinition
matter- anything that has mass and takes up space.
energy transfer- changes in states/phrases of matter due to an increase or decrease in temperature.
compound/molecule- two or more elements combine together in a specific ratio/pattern creating a whole, new and different substance. ex:water h2o (2) hydrogen atoms + (3) oxygen atom
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 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
neutron- particle of an atom with a neutral/no charge located inside nucleus along with the protons.
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 matter in the universe.
periods/rows- rows that tell how many energy levels each element has for the electrons to move around.
groups or family/columns- columns that tell how many lenience electrons each element has/ the number of valence 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 change/ reaction- elements bond together through the attractive force of electrons creating some type of reaction and change.
Created by: Emily Byrne
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