Vocabulary for Matter and Elements

Term Definition
matter Anything that takes up space and has mass
mass The amount of matter in an object
volume The amount of space matter takes up
density The mass of a material in a given volume
atom The basic particle that all elements are made of
electrons The particle of an atom that has a negative charge, it also bonds with other atoms to create everything in the world
proton the particle of an atom that has a positive charge and is located inside the nucleus
neutron the particle of an atom that that is located on the inside the nucleus with a proton
Periodic Table a grid that classifies all elements into rows and columns by there chemical and physical properties
periods/rows rows that can tell her how many energy levels an element has
groups/columns columns that can tell you how many valence electrons an element has
valence electrons electrons that move all around on an energy level of an atom
atomic number the amount of protons an element has inside its nucleus
atomic mass a measurement of mass for an elements atoms
chemical property Substances being able to combine with one another forming new and different compounds and molecules
physical property a state of matter that is based on appearance
ionic bond what happens when elements lose or gain and electron
covalent bond elements sharing electrons during bonding
chemical change/reaction when elements bond together through an attractive force
compound molecule two or more elements combining together
mixture two or more substances combining together but not combined chemically combined
nobel gasses the most stable elements
halogens very reactive elements
alkali metals very reactive elements with only one valance electron
metalloids an element between metal and non metal

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