the original was created by Mendaleeve, a Russian Chemist but the one you see today was created years later by a man named Mosely
the periodic table has all the elments
Mendeleev invented the periodic table.
he invented the first periodic table..
Dmitri Mendeleev
Elements in the same family (group) on the periodic table have the same number of valence electrons and hence they have similar properties and reactivities.
Technetium (43), Promethium (61), and all the transuranic elements are synthetic.
A "family" of elements means the vertical columns in the periodic table. If you look above the periodic table, there will be numbers for each row, numbered from 1 to 18. Each "family" is a column.
The Periodic Table Of Elements Was Invented iN 1869, By A Russian Chemist Named Dmitri Mendeleev.
The noble gases viz., helium, neon, argon, krypton, xenon, radon
It was invented in russia by Dmitri Mendeleevhe Periodic Table was invented and arranged by the Russian chemist Dmitri Mendeleev (1834-1907).
who introduced the first Periodic Table
1869