History Of The Periodic Table Flashcards
1
Q
Why did Newlands Octaves fail?
A
1) He didn’t leave gaps
2) He mixed metals and non metals
3) Groups had elements with different properties
2
Q
How did they arrange the elements in the early 1800s?
A
In order of atomic mass
3
Q
How did Mendeleev succeed?
A
He left gaps in the groups and therefore he could predict the properties of undiscovered elements
4
Q
How did Newlands arrange the elements?
A
In octaves
