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trends (important poeple who worked on the PT (lother meyer, mendelev,…
trends
important poeple who worked on the PT
lother meyer
mendelev
dobrainer
henry mosley
atomic radious vsanomic number
pt lweft to right elements get smaller
pt top to bottom elements get bigger
h-smaller
fr largest
ionization energy
definition
the amount of energy needed to remove and electron
trend
L energy need increases
t energy need decreases
electronegativity
the aboility to attract other electrons
trends
nonmetals will have a higher electronegativity
metals will have a low electronegativity
the number of electrons in the outer most orbital dictates properties
group 18
families on the periodic table
periodic law