The Periodic Table Flashcards
1
Q
Where are electrons located in an atom?
A
Electrons are located in electron shells around the nucleus.
2
Q
How can the electrons be shown?
A
In a dot and cross diagram.
3
Q
How many electrons are allowed in the first shell?
A
2
4
Q
How about in the next shell?
A
Up to 8
5
Q
The electronic configuration for sodium written is
A
2.8.1
6
Q
What does the group number show?
A
How many electrons are on the outer shell
