vocabulary for matter and elements

Term Definition
matter anything that takes up space and has mass
mass the material that matter is made up of
volume how much room/space matter takes up
density D=m/v the amount of material/stuff matter takes up within a specific space
atom smallest part of an element, the building blocks of matter
elements particle of an atom that surrounds the nucleus, it has a negative charge and attractive force to bond with other atoms
proton particle of an atoms that positive charge located in the nucleus
neutron particle of an atom with a neutral/ no change 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 broke down/ they make up all matter in the universe
period/rows rows that tell how many energy levels each elements has for the electrons to move around
groups or family/colums columns that tell 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
atomic number how many protons an element has inside the nucleus/ usually is the same number of neutrons and electrons
atomic mass the measurement of the mass for an elements aatoms
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 appearances of a substance
ionic bond when elements either lose or gain an electron during bonding
covalent when elements share electrons during bonding
chemical change/ reaction elements bond together the attractive force of electrons creating some type of reactions and change
compound/molecule two or more elements combine together in a specific ratio/ pattern creating a whole, new and diffrent substance
mixture two or more substances combine together keeping their original properties the do NOT change into a new substance/ compunnd
Nobel gases they are the most stable elements because they have eight electrons in their outer shell
haogens they are very reactive bonding easily with elements because they have seven valence electrons and want t be stable
alkali metals they are very reactive because they have only one valence electron
metalloids elements between metals and non-metals that can react either way, they have 3–7 valance electrons

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