metallic bonding and metals

Question 1

how are the atoms within a molecule held together

Answer 1

very strong covelent bond

Question 2

what makes a boiling point/melting point low

Answer 2

when the molecules are easilly seperated

Question 3

why do covenalnt structures have hight boiling points

Answer 3

beacuse the covalent bonds are so strong it takes alot of energy to break the forces between the atoms

Question 4

what cuases a material to conduct electricty

Answer 4

when electrons or ions move

Question 5

what are ionic compounds made of

Answer 5

a lattice of negativly and posativly charded ions

Question 6

why dont solid ionic coumpounds not conduct electricity

Answer 6

because the ions arent able to move

Question 7

how are metals held together

Answer 7

metallic bonding

Question 8

what is the stucture of metals

Answer 8

a giant structure of posotive ions surrounded by a sea of de localised electrons

Question 9

what is metalic bonding

Answer 9

the elctrostatic attractions between the nuclei of the posotive ions and the electrons

Question 10

why are metals good conductors of electricity and heat

Answer 10

because the de localaises electrons are able to move through the strcture.

Question 11

how metals and non metals bond

Answer 11

ionic bonding

Question 12

how to non metals and non metals bond

Answer 12

covalent bonding

Question 13

how to metals bond to other matals

Answer 13

metallic bonding

Question 14

explain metallic bonding

Answer 14

when atoms are together in a metal they all give up there outer shell electrons to shair them with the other atoms in the metal. This means that the atoms will all become postaive ions as they have lost negative electrons. The electrons are now free to move about and we call that de localised electrons. There is now electrostatic attractions between the posative ions and the negative electrons.