structure and bonding

Question 1

what is ionic bonding?

Answer 1

a strong electrostatic force of attraction between these oppositely charged ions.

Question 2

what is simple covalent bonding?

Answer 2

simple covalent molecules in which atoms are held together by covalent bonds.

Question 3

what is metallic bonding?

Answer 3

forces that hold atoms together in a metallic substance

Question 4

what is giant covalent stuctures?

Answer 4

one is which the atoms ate joined up by covalent bonds over huge number of atoms

Question 5

what are the types of giant covalent structures?

Answer 5

diamond, graphite, buckminster fullerene and carbon nanotubes

Question 6

facts about diamond

Answer 6

• they have no free electrons
• has strong covalent bonds

Question 7

facts about graphite

Answer 7

• there are no covalent bonds between the layers
• it contains layers of hexagons which are carbon atoms

Question 8

what two metals are used for ionic bonding?

Answer 8

metal and non metal

Question 9

facts about ionic bonding

Answer 9

• if an atom loses an electron, it has a positive charge (metal)
• if an atom gains an electron it has a negative charge (non-metal)
• they are strong because they have opposite charges

Question 10

what two metals are used for simple covalent bonding?

Answer 10

non-metal and a non-metal

Question 11

facts about simple covalent bonding

Answer 11

• electrons are shared
• most small covalent compounds like oxygen and water are liquid or gas at room temperature
• this is because the forces between the molecules are weak but the covalent bonds are strong
• the larger the mass of covalent molecules, the higher the melting point