Chapter 1 - Covalent Bonding Flashcards
1
Q
What is an atom?
A
A particle that can’t be divided any further
2
Q
What is an element?
A
Substance that contains only one type of atom
3
Q
What is a compound?
A
Two or more different elements chemically combined
4
Q
What is a molecule?
A
Two or more atoms bonded together
5
Q
What is covalent bonding?
A
non-metal + non-metal
6
Q
What is the electronic configuration?
A
The number of electrons in the shells
7
Q
What does the group number mean?
A
Roughly the same as number of electrons in outer shell
8
Q
Covalent bonding is…
A
sharing electrons
9
Q
Properties of covalent bonding?
A
- small molecules (low melting and boiling point)
- giant covalent structures (high melting and boiling point)
- no charges that move
10
Q
What are alatropes?
A
giant molecules made up of one element but arranged in different ways
11
Q
Properties of diamonds:
A
- very high melting points
- fairly unreactive
- hard wearing (4 strong covalent bonds)
