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periodic table (history (meyer and mendeleey (1869 both made connection…
periodic table
history
1790s Lavoisier list of 23 elements
1870s 70 known elements
new scientific data with their discovery
john newlands
1864 law of octaves
repeating pattern every 8 elements
meyer and mendeleey
1869 both made connection between atomic mass and elemt prop
built his table by atomic mass
left blanks
moseleys fix
1913 changed the table
modern table
transition elements
middle row
numbering rows
1-18
representitive elements
main or tall
law
periodic products of elements arranged by atomic number