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Chapter 2.1 Vocab

Periodic Table Vocab

TermDefinition
Atom smallest unit of matter
Element Pure substance consisting only of atoms that all have the same number of protons
Proton positively charged subatomic particles found in nucleus
Neutron Uncharged particles in the nucleus
Electron Negatively charged particles that orbit the nucleus
Isotope An atom in a chemical element that has the same number of protons but a different number of neutrons compared to other atoms in the chemical element
Ion an atom with a positive or negative electrical charge because it has lost or gained electrons
Compound a substance made up of two or more elements combined chemically
Molecule a group of atoms held together by chemical bonds
Ionic Bond a bond made from the attraction between oppositely charged ions, which occurs when one atom transfers one or more electrons to another
Covalent Bond a chemical bond formed made by the sharing of electrons between atoms
Created by: user-1964937
 

 



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