Ionic Bonding
The bonds can be positive or negative. (True or False)
True
Do covalent bonds have high or low melting points?
They have a very low melting points.
Metallic bonds are found in ______?
Metals
It is a pattern in which a crystal is arranged.
What is a Crystal Lattice.
What does the Periodic Table tells us the number of?
The number of protons, electrons, neutrons, and valance electrons.
Why do pieces of salt have cubic shapes?
They all have their own crystal lattice or blueprints.
Are covalent bonds brittle at a solid state?
Yes
Can metal be reshaped without breaking?
Yes
The joining of atoms to from new substances.
Chemical Bonding
What does bonding have to depend on?
It depends on the valance electrons.
How come if we eat salt sodium does not kill us?
When chemicals bond it makes a whole new substance and properties.
What is created when elements bond covalently?
Molecules
What does it mean to be able to conduct electricity?
It means electrical current can flow through the metal.
These are the outermost layer of electrons.
What is Valence Electrons
How can you make a positive or negative ion?
By gaining and losing electrons.
Name 3 properties of ionic bonds
They are Brittle, Highly Soluble, High Melting and Boiling Points.
Covalent bonds are formed when atoms _____ _________?
Share Electrons.
A charged atom that forms when an atom gains or loses electrons.
Ion
Describe how the valence electrons in a metal move.
It moves in like a sea of electrons.
How does covalent and ionic bonds compare in terms of melting points?
Ionic Bonds have higher melting points.
Covalent bonds happen between 2 ___ ______?
Non Metals
Name 3 properties of Metallic Bonds?
Electrical conductivity, malleability, and ductility.
A bond formed by the attraction between positively charged metal ions
Metallic Bond
What is the difference between Malleability and Ductility
Malleability means can be rolled and pounded without breaking; Ductility means can be drawn into wires.