Ions and Formulas Flashcards
1
Q
What ionic structure do ions have?
A
The same as noble gases, full outer shell
2
Q
From what four groups do elements most readily form ions?
A
1,2,6 and 7
3
Q
What is the overall charge of any compound?
A
Zero
4
Q
All the negative charges in the compound must _______ all the positive charges.
A
balance
5
Q
When a magnesium ion is +2 and a chlorine ion is -1, what is the formula of magnesium chloride?
A
MgCl2
6
Q
When a potassium ion is +1 and a oxygen ion is -2, what is the formula for potassium oxide?
A
K2O
