Bonding Flashcards
Covalent bonding occurs between
Two non-metals
Ionic bonding occurs between…
Non metal and metal
How does ionic bonding work?
Elements give/receive atoms so that they have a full outer shell (8 atoms).
How does covalent bonding work?
Elements share pairs of atoms, either single or double bonds depending on how many pairs shared. Again this fills their outer shell.
What does the atomic number tell you?
How many protons are in an element.
What are two or more atoms bonded together called?
A molecule.
What do you call something that has more than one type of atom in it?
A compound.
How many types of atoms does an element contain?
One type.
What charge do electrons have?
Negative.
What charge do protons have?
Positive.
How are metal structures held together?
The electro-static attraction between the positive metal ions and negative delocalised electrons.
Why do metals have very high boiling and melting points?
Because they have such strong bonds.
Why are metals such good conductors? (Of heat and electricity)
Because the delocalised electrons can move freely and carry the heat/current throughout the metal very quickly.
Why are metals ductile?
Because the layers of metal ions can easily slide over each other while keeping the strong attraction.
