Chemical Bonds

?
What are the key facts about bonding?
Particles are oppositely charged ions. This occurs in compounds formed from metals and non-metals.
1 of 16
What are the key facts about covalent bonding?
Particles are atoms which share pair of electrons. This occurs in non-metalic elements and compounds of non-metals.
2 of 16
What are the key facts about metalic bonding?
Particles are atoms which share delocalised electrons. This occurs in metalic elements and alloys.
3 of 16
What happens when a metal atom reacts with a non-metal atom?
Electrons of the metal atom are transffered.
4 of 16
How the electron transfer during the formation of ionic compound can be represented?
It can be represented by a dot and a cross diagram.
5 of 16
What's ionic compound?
It's a huge structure of ions.
6 of 16
What are the key facts about ionic compounds?
Ionic compounds are held together by elecrostatic forces. These forces act in all directions in the lattice=ionic bonding. High MP and BP because of large amount of energy needed to break strong bonds.
7 of 16
What happens when atoms share pair of electrons?
They form covalent bonds, bonds are strong, made of small molecules.
8 of 16
What are the key facts about metals?
Huge structures of atoms, regular pattern. Electrons in the outer shell are delocalised, free to move, sharing electrons=stronger metalic bonds.
9 of 16
What happens when ionic compounds are melted or dissolved in water?
Ionic compounds conduct elecricity because ions are free to move, so charge can flow.
10 of 16
What are the key facts about gases and liquids?
Low MP and BP. Weak forces between the molecules. Intermolecular forces overcome, increase size of molecules so larger molecules have larger MP and BP. Do not conduct electricity because no electric charge.
11 of 16
What are the key facts about polymers?
Large molecules, atoms are linked by covalent bonds. Intermolecular forces are strong so its solid at room temp.
12 of 16
What are the key facts about pure metals?
Atoms are in layers, allows metals to be bent and shaped. Mixed with other metals to make alloys which are harder.
13 of 16
Why are metals good conductors of electricity?
Delocalised electrons carry electrical charge.
14 of 16
What are the key facts about graphite?
Each carbon atom forms 3 covalent bonds with 3 other carbon atoms=hexagonal rings=no covalent bonds between layers. 1 carbon delocalised.
15 of 16
What are fullerenes?
Molecules of carbon atoms with high length. Useful for nanotechnology, electronics and materials.
16 of 16

Other cards in this set

Card 2

Front

What are the key facts about covalent bonding?

Back

Particles are atoms which share pair of electrons. This occurs in non-metalic elements and compounds of non-metals.

Card 3

Front

What are the key facts about metalic bonding?

Back

Preview of the front of card 3

Card 4

Front

What happens when a metal atom reacts with a non-metal atom?

Back

Preview of the front of card 4

Card 5

Front

How the electron transfer during the formation of ionic compound can be represented?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Metals, metal ores and alloys resources »