Covalent Bonding Flashcards
1
Q
Describe what a covalent bond is
A
- A strong bond between two non-metal atoms
- it consists of a shared pair of electrons
2
Q
Melting point of a simple covalent molecules
A
- low melting and boiling points
- because there are weak intermolecular forces between molecules
3
Q
How many covalent bonds does a noble gas form?
A
Non - noble gasses already have a full outer shell
4
Q
What is a molecule?
A
A molecule is a collection of two or more atoms held together by chemical bonds
5
Q
How many electrons are involved in each covalent bond?
A
Two electrons
6
Q
Where do the electrons in a covalent bond come from?
A
The outermost shell of an atom
7
Q
In diamonds how many covalent bonds does each carbon atom form?
A
4 covalent bonds
8
Q
Why does graphite conduct electricity?
A
Due to its delocalised electrons which can travel freely and allowing graphite to conduct electricity along the hexagonal planes.
