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Chapter 17

Vocab for Physical Science test

Element any pure substance that is made of only one kind of atom
Monotomic Elements have 1 atom in natural state
Diatomic Elements have 2 atoms in natural state
Dmitri Mendeleev made the periodic table we use today
Johann Dobereiner arranged the Periodic Table in traids
Periodicity the repetition of certain properties at regular intervals when elements were placed in order of atomic mass
John Newlands Octaves
Henry Moseley atomic numbers
Electron affinity attraction of electron to unbounded atoms
Electronegativity attraction of electrons to bonded atoms
Covalent Bonds nonmetal/nonmetal
Ionic Bonds nonmetal/metal
Metallic Bonds metal/metal
Created by: studystack582