SC4 The Periodic Table Flashcards
1
Q
Mendeleev’s Table
A
1869, Mendeleev arranged table by sorting elements into groups based on their properties and he saw a pattern appear
2
Q
Define a ‘group’ in the periodic table
A
the number of electrons in outer shell
3
Q
Define a ‘period’ in the periodic table
A
the number of shells
4
Q
What are electronic configurations?
A
The positioning of electrons: 2.8.8.8….
5
Q
What did *s show in Mendeleev’s table?
A
*s were to show some gaps that had to be left to keep elements with similar properties together
