group 17 Flashcards
1
Q
how many valence electrons does it have
A
- This group has seven outer-shell electrons, but would need eight to become stable
2
Q
how would an element in group 17 become stable
A
To become stable, these atoms gain an electron to fill their outer-shell
3
Q
what would be the charge on this element
A
This creates a negative ion with a charge of -1
4
Q
what charge do group 15 elements have
A
-3
5
Q
what charge do group 16 elements have
A
-2
6
Q
A
