covalent bonding Flashcards
1
Q
what happens to the atoms?
A
they overlap and share their electrons (hydrogen)
2
Q
what do they achieve from this?
A
both atoms will end up with a full outer energy level (shell) like group 0
3
Q
what is it called when 2 atoms share an electron?
A
a single covalent bond
4
Q
name the 3 diagrams used to represent covalent bonding.
A
- energy level diagrams
- dot and cross diagram
- stick diagram
5
Q
what elements do covalent bonding take place between?
A
non metal elements
6
Q
what is a covalent bond?
A
a shared pair of electrons
7
Q
what does the small number represent in the name of an element?
A
how many atoms you need (eg H20 you would need one circle for oxygen and 2 hydrogen ones)
8
Q
what shell do you use during covalent bonding?
A
only the outer shell
9
Q
what is it called when their is 2 shared pairs of electrons?
A
a double covalent bond
