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Periodic Table/Aden

Periodic Table Table of all the elements
Element pure substance that cannot be broken down into smaller peices
Atomic Mass The nucleus of an atom contains nearly all of an atom’s mass. An atom’s nucleus is made up of protons and neutrons. Atomic mass is approximately equal to the total number of protons and neutrons in the nucleus of an atom.
Atomic Number All elements are made of atoms. Each atom has a nucleus that contains particles called protons. Protons carry a positive charge. The atomic number of an element is equal to the number of protons in the nucleus.
Period Horizontal row on the periodic table.
Group Related elements.
Family Vertical row on the periodic table
Metals Solids on the periodic table.
Metalloids Semi-Metals on the periodic table.
Nonmetals Gases/Liquids on the periodic table.
Noble Gases Far right vertical column on the periodic table.
Reactivity How reactive an element is.
Dmitri Mendeleev Scientist who created the periodic table.
Trend Similarities of elements as they continue.
Energy Level How high or low the energy is.
Valence Electrons In chemistry, a valence electron is an electron that is associated with an atom, and that can participate in the formation of a chemical bond; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair
Chemical Property A chemical property is any of a material's properties that becomes evident during, or after, a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity.
Physical Property Physical properties can be observed or measured without changing the composition of matter. Physical properties are used to observe and describe matter.
Created by: AdeLaw2020