They have the same electronic structures as noble gases.
1 of 12
What is a dot and cross diagram?
Electrically charged particles, formed when an atom or molecule gains or loses electrons.
2 of 12
Do covalent bonds conduct electricity as a solid?
In contrast, covalent compounds do not exhibit any electrical conductivity, either in pure form or when dissolved in water.
3 of 12
Why do simple molecules not conduct electricity?
This is because they do not have any free electrons or an overall electric charge.
4 of 12
What do metallic bonds share?
In metallic bonds, the valence electrons from the s and p orbitals of the interacting metal atoms delocalize.
5 of 12
How metals are bonded together?
Metals form giant structures in which electrons in the outer shells of the metal atoms are free to move.
6 of 12
What are nanoparticles and what are they used for?
Nanoparticles are now being used in the manufacture of scratchproof eyeglasses, crack- resistant paints, anti-graffiti coatings for walls,
7 of 12
What are the special properties of nanoparticles?
Nanoparticles are unique because of their large surface area and this dominates the contributions made by the small bulk of the material.
8 of 12
Are all plastic polymers?
Plastics and natural materials such as rubber or cellulose are composed of very large molecules called polymers.
9 of 12
What is an addition polymerisation?
An addition polymer is a polymer which is formed by an addition reaction, where many monomers bond together via rearrangement of bonds without the loss of any atom or molecule.
10 of 12
Can fullerenes conduct electricity?
These can move throughout the fullerene, allowing conduction of electricity.
11 of 12
What is carbon 60?
The most common buckyball contains 60 carbon atoms and is sometimes called C60
12 of 12
Other cards in this set
Card 2
Front
What is a dot and cross diagram?
Back
Electrically charged particles, formed when an atom or molecule gains or loses electrons.
Comments
Report
Report
Report