C2 Bonding Flashcards
Name the type of bond formed between non-metal atoms
Covalent
Name the type of bond formed between metal and non-metal atoms
Ionic
Name the type of bond formed between metal atoms
Metallic
What type of structure do ionic substances form?
Giant structure (also called a lattice structure)
What type of structure do metals have?
Giant structure
What type of structure do covalent substances have?
Giant structure OR simple molecules
How do covalent bonds form?
Atoms share a pair of electrons
How do ionic bonds form?
Atoms are transferred from one atom to another, to form ions. Positive and negative ions are attracted to each other - this is called an electrostatic force.
What is represented by the yellow circles in this diagram?
Electrons
If an atom gains an electron, what charge will it have?
-1
If an atom loses 2 electrons, what charge will it have?
+2
What is an isotope?
Atoms of the same element, that have the same number of protons and electrons, but different numbers of neutrons.
How do metallic bonds form?
Outer shell electrons delocalise, which means they are free to move around inside the structure.
The metal atoms are arranged in layers.
The electrostatic attraction between the positive metal atoms and the negative electrons holds the structure together.