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Lima Senior

Atoms & The Periodic Table

Atom The smallest unit to which an element can be reduced
Nucleus The center of an atom
Proton A subatomic particle with a positive charge
Neutron A subatomic particle with no charge
Electron A subatomic particle with a negative charge and no significant mass
Quark A sub-subatomic particle that makes up protons and neutrons
Electron cloud The area surrounding the nucleus of an atom where electrons can be found
Atomic number The number of protons in an atom
Mass number The mass of the entire atom
Isotope A version of an atom with a different mass
Periodic table An arrangement of the elements grouping them by repeating properties
Group A vertical column of elements on the periodic table
Electron dot diagram A way to represent the valence electron configuration of an atom
Period A horizontal row of elements on the periodic table
Ion A charged atom
Anion A negatively charged ion
Cation A positively charged ion
Ionization The process of an atom becoming an ion by gaining or losing electrons
Element A substance that consists of only 1 type of atom (the same kind of atom)
Chemical A substance with its own unique properties
Chemical symbol A 1,2, or 3 letter representation of an element's name - only the first letter is capitalized
Created by: MrFaisant