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chapter 17

vocab

TermDefinition
Atom Which is the piece of matter that still retains the property of the element.
Nucleus Protons and neutrons are found in a small, positively charged center of the atom.
Protons Are particles with an electrical charge of 1+.
Neutrons Are neutral particles that do not have an electrical charge.
Electrons Are particles with an electrical charge of 1-.
Electron Cloud The area around the nucleus of an atom where its electrons are most likely found.
Atomic Number The number of protons in an atom is equal to a number.
Mass Number The sum of the number of protons and the number of neutrons in the nucleus of an atom.
Isotopes Atoms of the same element that have different numbers of neutrons.
Average Atomic Mass The weighted-average mass of the mixture of its isotopes.
Periodic Table
Groups The vertical columns in the periodic table.
Electron Dot Diagram Uses the symbol of the element and dots to represent the electrons in the outer energy level.
Periods The horizontal rows of elements on the periodic table.
Quarks Protons and neutrons however are made up of smaller particles.
Created by: blake77
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