Chemistry Revision Flashcards
What are the 5 structure types
Ionic
Simple molecular
Metallic
Monoatomic
Giant covalent
True or false, ionic has a giant lattice structure
True
Describe simple molecular?
It has a covalent bond, and it is between non metals only and it has a low melting and boiling point, it has also got weak intermolecular forces
Describe giant covalent?
It has covalent bonding, giant lattice structure and high melting and boiling point, it has strong covalent bonds
Why does ionic have a high melting point and boiling point?
The reason is because it has strong electrostatic attraction.
Do metals form negative or positive ions
They form positive ions
Do non metals form negative or positive ions
They form negative ions
Describe simple molecular?
Covalent bonding between non metals only, it has low melting and boiling points due to weak intermolecular forces
What are group 1 elements called
Alkaline metals
What are group 7 elements called
Halogens
What are group 0 elements called
Noble gases
How many electrons does group 6 need to have a full outer shell
2 electrons
Group 7 form plus one ions true or false
False because they form negative 1 ions
Describe metallic
Metallic bonding between metals only, it has got a giant lattice structure and a high melting and boiling point this is due to strong electrostatic attraction
Do metals loose or gain electrons
They loose electrons
Do non metals loose or gain electrons
Gain electrons
When a metal and a non metal bond what is the overall charge
Zero
What is hunds rule
Electrons prefer to occupy orbitals on their own
What is covalent bonding
Bonding involving the sharing of outer shell electrons
What is hydrogen bonding
Similar to the permanent dipole the electron pair dragged away from hydrogen leaving an exposed nucleus and this amplifies the force of attraction
What ions do group 1 metals form
+1 ions
What ions do group 2 metals form
+2 ions
What ions do group 3 elements form
+3 ions
What ions do group 7 elements form
-1 ions
