Ionic Bondings Flashcards
Which atoms form positive and negative ions?
Metal atoms form positive ions, while non-metal atoms form negative ions.
What are ionic bonds?
Ionic bonds are strong electrostatic forces of attraction between oppositely charged ions.
Is it possible to break ionic bonds?
It is possible however ionic bonds are very strong therefore a lot of energy is needed to break them.
Why do ionic compounds have high boiling and melting points?
Ionic bonds are very strong and lots of energy is needed to separate them. So ionic compounds have high boiling and melting points.
When is the only time ionic compounds can conduct electricity?
Ions are charged particles, but ionic compounds can only conduct electricity if their ions are free to move.
What happens to metal atoms when they ionize?
Metal atoms lose the electron, or electrons, in their highest energy level and become positively charged ions.
What happens to non-metal electrons when they ionize?
Non-metal atoms gain an electron, or electrons, from another atom to become negatively charged ions.
How do you work out what the charge on an ion should be? Step 1
The number of charges on an ion formed by a metal is equal to the group number of the metal.
How do you work out what the charge on an ion should be? Step 2
The number of charges on an ion formed by a non-metal is equal to the group number minus eight. e.g Hydrogen forms H+ ions
What is an ionic compound? How do you get an ionic compound?
When metals react with non-metals electrons are transferred from the metal atoms to non-metal atoms, forming ions.
List one example of an ionic bond in an ionic compound
There are many ionic bonds in an ionic compound such as sodium chloride, arranged in giant lattice structures.
What are ions?
Ions are electrically charged particles formed when atoms lose or gain electrons. They have the same electronic structures as noble gases.
What ions do metal atoms form?
Positive ions.
What ions do non-metal atoms form?
Negative ions.
What are the elements in group one of the periodic table called?
Alkali metals
