Ionic Bonding Flashcards
Atoms on the left of the periodic table how electrons do they have in their outer shell? Give examples…
1 or 2 electrons in their outer shell (highest level) try and get rid of them to become stable.
Sodium, Potassium, Calcium
Do noble gases have a complete outer shell?
Yes
What type of charge do ions tend go for?
Ions tend to leap at the first passing ion with an opposite charge and stick to the new element. This element becomes negative and the element that lost this electron becomes positive.
What groups nearly have full outer shells?
Group 6 and 7, such as oxygen and chlorine
Explain the classic case when sodium reacts with chlorine…
Sodium has 11 electrons and needs to lose one to become stable, Na+ ion. The chlorine atom which has 17 electrons and 1 more electron to have a complete outer shell. It takes sodiums electron and becomes a Cl- ion.
Ionic compounds always have…
Giant ionic lattices
Explain how ionic compounds have similar properties…
They all have high melting points and boiling points due to the strong attraction between the ions. It takes a large amount of energy to overcome this attraction. When ionic compounds melt, the ions are free to move and they’ll carry electric current.
Explain point 2…
They dissolve easily in water and the ions separate and are free to move in the solution, so they’ll carry electric current.
What is the definition of ionic bonding?
Ionic bonding is when atoms lose or gain electrons to form charged particles called ions, which are then strongly attracted to one another due to the attraction of opposite charges, + and -.
