History Of Pt Flashcards
1
Q
What did John Newland discover?
A
The law of octaves
2
Q
What is the law of octaves?
A
Every 8th element reacts in a similar way
3
Q
Who developed the first modern periodic table?
A
Mendeleev
4
Q
How did Mendeleev create the first modern periodic table?
A
- ordered elements in order of increacing atomic weight
- switched the order of some elements so thye fitted the pattern of other elements in the same group
- left gaps,and predicted properties of undiscovered elements
5
Q
How is the modern periodic table different to that of mendeleev
A
- ordered by protons
- modern has group 0
6
Q
A
7
Q
A
