metals

Question 1

what are metals arranged

Answer 1

a giant structure of atoms arranged in regular layers

Question 2

how are electrons in metal

Answer 2

electrons in outer energy level are delocalised

Question 3

what are they called as they have lost outer electrons

Answer 3

they are ions

Question 4

what are there strong el- forces between

Answer 4

strong electrostatic attractions between sea of delocalised negative electrons and positive metal ions

Question 5

metallic bonds: el- attractions and m/b points

Answer 5

electrocstatic attractions in metals and metallic bonds are strong
high m/b points to break down bonds

Question 6

metals: con-

Answer 6

good conductors of heat and electricty as electrons can move

Question 7

why do moving electrons carry an electric current

Answer 7

because electrons are charged

Question 8

thermal energy metals

Answer 8

moving electrons can carry thermal energy so can conduct heat

Question 9

why can metals be be- and sh-

Answer 9

bent and shaped because the layers of atoms are able to slide over each other

Question 10

what are alloys

Answer 10

different mixtures of metals

Question 11

why is it difficult for alloys to slide over

Answer 11

different sizes of atoms distorts the layers making it difficult to slide over so they’re harder than pure metals