C4.3

Question 1

negative charges flow towards what?

Answer 1

abide

Question 2

positive charges flow towards where?

why?

Answer 2

cathode

opposites attract

Question 3

metals form what ions?

Answer 3

positive

Question 4

non metals form what ions?

Answer 4

negative

Question 5

why do non metals form a negative ions

Answer 5

when they bind together into an ionic substance, the charges cannot move so they don’t conduct electricity

Question 6

if ions melt

Answer 6

because the ions can now move around independently

the molten compound conducts electricity

Question 7

why do group 1 tend to form 1+ ions

Answer 7

more likely to lose ELECTRON so have more protons in nucleus than electrons outside so give 1+ charge

Question 8

what charge do group 7 tend to form

Answer 8

1- charge

Question 9

compounds of group 1 metals with group 7 elements are what?

Answer 9

ionic

Question 10

why do solid ionic compounds form crystals,

Answer 10

because ions arranged in regular lattice

Question 11

what happens when an ionic compound dissolves in water?

Answer 11

can now conduct electricity because ions can move independently among water molecules