The periodic table Flashcards
1
Q
Who is credited for the structure of the periodic table?
A
Mandeleev
2
Q
How many groups are in the periodic table
A
18
3
Q
How many periods are in the periodic table?
A
7
4
Q
what happens to the atomic radius going across periods
A
it decreases
5
Q
what happens to the atomic radius going down the groups?
A
it increases
