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Atom/periodic table

TermDefinition
atoms the building blocks of matter (protons, neutrons, electrons)
element A pure substance (all atoms have the same atomic number or number of protons)
nucleus the center of an atom, it contains the protons and neutrons
proton particles that have a positive charge
neutron particles that do not have a charge and are neutral
electron particles that have a negative charge
atomic number the number of protons and electrons found in an element
atomic mass the mass of an atom
shells energy levels where the electrons are found
valence electron the electrons in the outer most shell, determines bonding
periods horizontal rows on the table that tell how many shells the element will have on the Bohr Model.
groups vertical columns on the periodic table that tell the number of valence electrons
Noble Gases group 18 on the periodic table. These elements have full outer shells
The three subatomic particles protons, neutrons, electrons
The two subatomic particles that make up atomic mass protons and neutrons
inert full or stable
location of metals on the periodic table on the left side of the zig-zag line
location of non-metals on the periodic table on the right side of the zig-zag line
location of metalloids on either side of the zig-zag line
what group are the alkali metals group 1
what is another name for the alkaline earth metals group 2
Bohr Model shows the entire structure of the atom
which two subatomic particles have an atomic mass unit of 1 protons and neutrons
Created by: swkemp
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