Periodic table dev Flashcards
1
Q
what was newland’s octaves
A
every 8th element acted in a similar way
2
Q
what was wrong with octaves
A
sometimes elements with different properties grouped together
3
Q
what did mendeleev do
A
switch order of different elements so they fitted patterns of other elements in the same group
4
Q
what did mendeleev predict
A
properties of undiscovered elements
5
Q
how is the modern periodic table arranged
A
in order of atomic number
