Development of the Periodic Table Flashcards
1
Q
John Newlands
A
elements were ordered by atomic weights, every eighth element had similar properties
2
Q
Who invented the modern Periodic Table?
A
Dmitri Mendeleev
19th Century
3
Q
Julius Meyer
A
arranged elements by atomic weight and by the number of atoms the element usually combined with.
4
Q
Ideas of Periodic Table
A
The elements are arranged in order of increasing atomic mass
The horizontal rows are called periods
The vertical columns are called groups
Elements in the same group are similar to each other
