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PT Intro

QuestionAnswer
how first periodic table arranged elements increasing atomic mass
how current periodic table arranges elements increasing atomic number
number of periods on periodic table 7
number of groups/families on periodic table 18
vertical column on periodic table group/family
horizontal row on the periodic table period
electrons closer to the nucleus of atom core electrons
electrons furthest from the nucleus of atom valence electrons
basic units of matter atom
substance that CANNOT be broken down into simpler substances using chemical means element
number of protons atomic number
the sum of protons and neutrons atomic mass
subatomic particle with positive charge proton
subatomic particle with negative charge electron
subatomic particle with neutral/no charge neutron
center of atom where protons and neutrons are found nucleus
he created the first periodic table Mendeleev
his researched changed the arrangement of elements to increasing atomic number Moseley
change in number of protons different element
change in number of neutrons (atomic mass) isotope
change in number of electrons ion
location of electrons electron cloud
solids, shiny, good conductors, malleable, ductile metals
mostly gases, dull, poor conductors, brittle, non-ductile non-metals
energy needed to remove electrons from atom ionization energy
ability to attract electrons from nearby atoms electronegativity
distance from center of nucleus to outermost electron shell atomic size
element with largest atomic size Francium [Fr]
element with highest electronegativity & most ionization energy Fluorine [F]
Created by: cadetjt
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