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Science Final 2019

TermDefinition
atom the tiny pieces that all matter—all the stuff in the world—is made of
property something that can be observed about a substance, such as color, smell, or boiling point
substance something that is made of all the same atoms or groups of atoms
product an ending substance that is made during a chemical reaction
reactant a starting substance that is part of a chemical reaction
chemical reaction a process in which atoms rearrange to form new substances
Mendeleev The creator of the first periodic table
atomic number number of protons in an atom
atomic mass the sum of protons and neutrons in an atom
noble gases group 18 on the periodic on the periodic table that all have 8 valence electrons and are inert.
metals all elements left of zig-zag, are shiny, conduct heat and electricity, malleable,ductile, tend to lose electrons to form bonds.
non-metals mostly gasses(except Br), don't conduct, not shiny, not malleable or ductile, tend to gain electrons in bonds, essential for life.
metalloids touch zig-zag, have properties of metals and nonmetals, semiconductors, important in circuits.
Created by: Amowery19
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