The Modern Periodic Table Flashcards
(7 cards)
1
Q
What are vertical columns called on the periodic table?
A
Groups
2
Q
What does the group number tell you about the element on a periodic table?
A
The amount of electrons in their outer shell
3
Q
In the modern periodic table, what order are elements laid out of?
A
Increasing atomic number
4
Q
How many electrons does helium have in its outershell?
A
2
5
Q
Does reactivity in group 1 increase or decrease as you go down?
A
Increase
6
Q
Does reactivity in group 7 increase or decrease as you go down?
A
Decrease
7
Q
What are the rows called on the periodic table?
A
Periods
