Periodic table Flashcards
1
Q
How did Newlands and Mendeleev first attempt to classify the elements by?
A
Atomic weights
2
Q
How did Mendeleev overcome some of the problems found in the development of the early periodic table?
A
He left gaps for new elements he believed would be discovered.
3
Q
How can the modern periodic table be seen as?
A
Arrangements of elements in terms of their electronic structures. Elements in the same group have the same number of electrons on their outer shell.
