Pleasevwritevclearlyvinvblockvcapitals.
Centrevnumber Candidatev number
Surname v
Forename(s) v
Candidatevsignature
I declare this is my own work.
GCSE
CHEMISTRY H
HigherTier v Paper 1 v
Monday19May2025 v v v Morning Timeallowed:1hour45minutes v v v v
Materials ForvExaminer’svUse
Forvthisvpapervyouvmust have:
N
avruler Question Mark
avscientificvcalculator 1
thevperiodicvtablev(enclosed).
2
Instructions 3
Usevblackvinkvorvblackvball-pointvpen. 4
Pencilvshouldvonlyvbevusedvforvdrawing. 5
Fillvinvthevboxesvatvthevtopvofvthisvpage.
Answervallvquestionsvinvthevspacesvprovided.v Dovnotvwritevoutsidevt 6
hevboxvaroundveachvpagevorvonvblankvpages. 7
Ifvyouvneedvextravspacevforvyourvanswer(s),vusevthevlinedvpagesvatvthevendvofvt 8
hisvbook.v Writevthevquestionvnumbervagainstvyourvanswer(s).
9
Dovallvroughvworkvinvthisvbook.v Crossvthroughvanyvwork youvdovnotvwant
N
tovbevmarked. TOTAL
Information
Thevmaximumvmarkvforvthisvpapervisv100.
Thevmarksvforvquestionsvarevshownvinvbrackets.
Youvarevexpectedvtovusevavcalculatorvwherevappropriate.
Invallvcalculations,vshowvclearlyvhowvyouvworkvoutvyourvanswer.
YouvarevremindedvofvthevneedvforvgoodvEnglishvandvclearvpresentationvi
nvyourvanswers.
IB/M/Jun25/G4007/E11 8462/1H
, 2
Dovnotvwrit
ev outsidevt
0 1 v Thisvquestionvisvaboutvelementsvinvthevperiodicvtable. he box
0 1 . 1 Describevwherevthevnon-metallicvelementsvarevfoundvinvthevperiodicvtable.
[1vmark]
0 1 . 2 Galliumv(Ga)visvavmetallicvelementvinvGroupv3.
Whichvofvthesevpropertiesvofvgalliumvisvnotvtypicalvofvmost metals?v
N
[1vmark]
Tickv()vonevbox.
A boilingvpoint abovev1000v°C
N N
Avmeltingvpoint belowv100v°Cv
N
Conductsvelectricityvwhenvsolidv
Forms positivevions
N
IB/M/Jun25/8462/1H
, 3
Dovnotvwrit
ev outsidevt
0 1 . 3 A sodiumvatomvcanvbevrepresentedvasv2311
N Na he box
CompletevFigurev1vtovshowvthevelectronicvstructurevofvavsodiumvatom.
[1vmark]
Figurev1
0 1 . 4 Mendeleevvcreatedvanvearlyvperiodicvtable.
Mendeleevvplacedvmostvofvthevelementsvinvordervofvatomicvweight.vTelluriuvmv
andviodinevwerevnotvplacedvinvordervofvatomicvweight.
WhyvdidvMendeleevvnotvplacevtelluriumvandviodinevinvordervofvatomicvweight?
[1vmark]
0 1 . 5 Argonvisvanvelement invGroupv0vofvthevperiodicvtable.
N
Explainvwhyvargonvisvunreactive.
[2vmarks]
Turnvover►
IB/M/Jun25/8462/1H
, 4
Dovnotvwrit
ev outsidevt
AnvelementvXvconsistsvofvtwovisotopes. he box
0 1 . 6 Whatvisvmeant byv‘isotopes’?
N
Answervinvtermsvofvsubatomic particles.
N
[2vmarks]
0 1 .v 7
Tablev1vshowsvthevmassvnumbersvandvpercenta
gevabundancesvofvthevisotopesvofvX.vTablev1
Massvnumber Percentagevabundancev(%)
113 4
115 96
WhichvisvthevclosestvestimatevtovthevrelativevatomicvmassvofvX?
[1vmark]
Tickv()vonevbox.
∼113 ∼114 ∼115 9
IB/M/Jun25/8462/1H
Centrevnumber Candidatev number
Surname v
Forename(s) v
Candidatevsignature
I declare this is my own work.
GCSE
CHEMISTRY H
HigherTier v Paper 1 v
Monday19May2025 v v v Morning Timeallowed:1hour45minutes v v v v
Materials ForvExaminer’svUse
Forvthisvpapervyouvmust have:
N
avruler Question Mark
avscientificvcalculator 1
thevperiodicvtablev(enclosed).
2
Instructions 3
Usevblackvinkvorvblackvball-pointvpen. 4
Pencilvshouldvonlyvbevusedvforvdrawing. 5
Fillvinvthevboxesvatvthevtopvofvthisvpage.
Answervallvquestionsvinvthevspacesvprovided.v Dovnotvwritevoutsidevt 6
hevboxvaroundveachvpagevorvonvblankvpages. 7
Ifvyouvneedvextravspacevforvyourvanswer(s),vusevthevlinedvpagesvatvthevendvofvt 8
hisvbook.v Writevthevquestionvnumbervagainstvyourvanswer(s).
9
Dovallvroughvworkvinvthisvbook.v Crossvthroughvanyvwork youvdovnotvwant
N
tovbevmarked. TOTAL
Information
Thevmaximumvmarkvforvthisvpapervisv100.
Thevmarksvforvquestionsvarevshownvinvbrackets.
Youvarevexpectedvtovusevavcalculatorvwherevappropriate.
Invallvcalculations,vshowvclearlyvhowvyouvworkvoutvyourvanswer.
YouvarevremindedvofvthevneedvforvgoodvEnglishvandvclearvpresentationvi
nvyourvanswers.
IB/M/Jun25/G4007/E11 8462/1H
, 2
Dovnotvwrit
ev outsidevt
0 1 v Thisvquestionvisvaboutvelementsvinvthevperiodicvtable. he box
0 1 . 1 Describevwherevthevnon-metallicvelementsvarevfoundvinvthevperiodicvtable.
[1vmark]
0 1 . 2 Galliumv(Ga)visvavmetallicvelementvinvGroupv3.
Whichvofvthesevpropertiesvofvgalliumvisvnotvtypicalvofvmost metals?v
N
[1vmark]
Tickv()vonevbox.
A boilingvpoint abovev1000v°C
N N
Avmeltingvpoint belowv100v°Cv
N
Conductsvelectricityvwhenvsolidv
Forms positivevions
N
IB/M/Jun25/8462/1H
, 3
Dovnotvwrit
ev outsidevt
0 1 . 3 A sodiumvatomvcanvbevrepresentedvasv2311
N Na he box
CompletevFigurev1vtovshowvthevelectronicvstructurevofvavsodiumvatom.
[1vmark]
Figurev1
0 1 . 4 Mendeleevvcreatedvanvearlyvperiodicvtable.
Mendeleevvplacedvmostvofvthevelementsvinvordervofvatomicvweight.vTelluriuvmv
andviodinevwerevnotvplacedvinvordervofvatomicvweight.
WhyvdidvMendeleevvnotvplacevtelluriumvandviodinevinvordervofvatomicvweight?
[1vmark]
0 1 . 5 Argonvisvanvelement invGroupv0vofvthevperiodicvtable.
N
Explainvwhyvargonvisvunreactive.
[2vmarks]
Turnvover►
IB/M/Jun25/8462/1H
, 4
Dovnotvwrit
ev outsidevt
AnvelementvXvconsistsvofvtwovisotopes. he box
0 1 . 6 Whatvisvmeant byv‘isotopes’?
N
Answervinvtermsvofvsubatomic particles.
N
[2vmarks]
0 1 .v 7
Tablev1vshowsvthevmassvnumbersvandvpercenta
gevabundancesvofvthevisotopesvofvX.vTablev1
Massvnumber Percentagevabundancev(%)
113 4
115 96
WhichvisvthevclosestvestimatevtovthevrelativevatomicvmassvofvX?
[1vmark]
Tickv()vonevbox.
∼113 ∼114 ∼115 9
IB/M/Jun25/8462/1H
