Ions Flashcards
(13 cards)
How many electrons do atoms gain/lose?
As many as they need to get a full outer shell
How many electrons do these groups of atom lose/gain?
1
2
13
15
16
17
1 - Lose 1
2 - Lose 2
13 - Lose 3
15 - Gain 3
16 - Gain 2
17 - Gain 1
Do group 14 and group 18 elements form ions?
No
A cation is (positive/negative)
Positive
An anion is (positive/negative)
Negative
Metals want to (lose/gain) electrons
Lose
Non-metals want to (lose/gain) electrons
Gain
Metals and non-metals exchange electrons in a ___ reaction
Chemical
What is ionic bonding?
Once the ions are formed, the positive ions are strongly attracted to the negative ions. Ionic compounds are made of ions stuck together in massive lattices
What is an ionic lattice?
An ionic lattice is a 3D structure composed of billions of cations and anions
Mg²⁺ + O²⁻
MgO
Al³⁺ + Cl⁻
AlCl₃
Na⁺ + SO₄²⁻
Na₂SO₄
