Ionic Bonding Flashcards
What is a Bond?
Bonds are forces of attraction that hold atoms together making them more stable and (less reactive).
in sum: Forces of attraction
What particle is involved with bonding?
electrons
What is an Ion?
A charged particle formed by the loss or gain of electrons to form a full outer shell.
What are cations and anions?
cations: A negatively charged ion.
anions: A positively charged ion.
What charge ion do group 1 and 2 metals form?
group 1: +1 ions (This is because group 1 metals always lose one electrons)
group 2: +2 ions(This is because group 2 metals always lose two electrons)
What charge ion do the group 6 and 7 non-metals form?
group 6: -2 ions (This is because group 6 non-metals always gain two electrons)
group 7: -1 ions (This is because group 7 non-metals always gain one electrons)
Why do group 8/0 elements not form ions?
Because it’s outer shell is already full.
What is an ionic bond?
electrostatic forces holding oppositely charged ions together.
What is an electrostatic force?
The force of attraction that bonds ions of different charges.
Draw the ionic bond for NaCl and MgO
Just draw on paper if you can :)
when drawing remember:
Brackets and atom numbers etc: 2,8,4
(Mg)2+ (O)2-
What is an ionic lattice / lattice structure?
Billions of ions packed together in a regular repeating arrangement.
What type of structure do ionic compounds form?
An ionic compound is a giant structure of ions
How do you work out the formula of a compound from its ions ( lego model)
(lego model) ¯_(ツ)_/¯
What is a polyatomic ion?
an atom containing another element with a charge
Why do ionic compounds have high melting points and boiling points?
Strong electrostatic forces of attraction hold ions in a lattice structure together. A lot of energy is needed to overcome these forces to separate the ions and melt the compound.
