Covalent Bonds Flashcards
1
Q
Definition:
A
Attraction between a shared pair of electrons and two nuclei
2
Q
Which elements are involved in covalent bonding?
A
Non-metals only
3
Q
Are covalent molecules gas, liquids, solids or all 3?
A
All 3 - but mainly gas
4
Q
How do non-metals fill their outer shells when forming bonds with non-metals?
A
Non-metals gain electrons ( form metals)
5
Q
How do the atoms in a water molecule stay together I.e what is a covalent bond?
A
The non-metals atoms share a pair of electrons with each other
6
Q
Why do simple covalent molecules have a low melting point, whilst diamond has a very high melting point?
A
Attraction between a shared pair of electrons and two nuclei
