Electrons Flashcards
1
Q
Where are electrons found in an atom
A
In the shells
2
Q
How many electrons are in the first shell?
A
2 :)
3
Q
What does the group number tell us?
A
The number of electrons in the Outer shell
4
Q
What does the period number tell us?
A
The total number of shells
5
Q
What is the significance of a group number?
A
It determines the chemical properties of the element. Noble gases are unreactive as they have a full outer shell.
