Groups and Periods Flashcards
1
Q
What are groups?
A
The vertical columns in the periodic table.
2
Q
Describe the elements in the same group.
A
They have similar chemical properties and the same number of valance electrons.
3
Q
What are periods?
A
The horizontal rows of the periodic table.
4
Q
Describe the elements in the same period.
A
They have the same number of electron shells.
