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periodic table

Vocabulary for Matter and Elements

matter anything that takes up space and and has mass
mass the material/ stuff that matter is made of - it can be measured
space/volume specific area/place that matter takes up
density D=m/v the amount of mass in an specific volume of space
atom smallest part of an element , the building blocks of matter
electron particle of an atom with a negative change , 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 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 broken down / they make up all of matter in the universe
Period Rows rows that tell how energy levels each elements has for the electrons to move around
Groups or family columns columns that tell how many valence electrons each element has/ the number of electrons that can move on it's 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 same number 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
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 elements share electrons during bonding
chemical/reaction elements bond together through the attractive force of electrons creating some type of reaction and change
compound/molecule two or more elements combine together specific ratio/ pattern creating a whole new, and different substancees
mixtures two or more substances combine together keeping their original properties, they do not change into a whole new substance/ compound.
Noble gases all of the elements in group #18 they are the most stable elements because they have eight electrons in their outer shell.