i Gcse Chemistry the Periodic Table

8/17/2019 i Gcse Chemistry the Periodic Table

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IGCSE CHEMISTRY THE PERIODIC TABLE

High Demand Questions QUESTIONSHEET 1

The boxes represent particles of different gases One box sho!s the particles of elements in group " #group $%

#a% #i% &hat name is gi'en to group " #$% elements(

)1*

#ii% Name t!o elements from group "

)+*

#b% #i% &hich box best represents particles from group " elements(

)1*

#ii% Explain the reason for ,our ans!er

)1*

#c% - lighted splint is put into a gas .ar of helium &hat !ould happen(

)1*

#d% Some properties of elements change as ,ou go do!n their group in the periodic table /or each propert, listed

belo!0 comment on if and ho! it changes as ,ou go do!n group "

#i% eacti'it,

)1*

#ii% Densit,

)1*

#iii% 2etal or non3metal

)1*

#e% &hich !ould be the best method to distinguish bet!een different samples of group " gases(

4hoose from the list belo!5#i% sha6e the sample !ith !ater and add an indicator0

#ii% Do a flame test0

#iii% put a lighted splint into a sample of each gas0

#i'% 2easure the densit, of each

)1*

1elc International School / Compile by Mrs.Seema


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GCSE CHEMISTRY THE PERIODIC TABLE

High Demand Questions QUESTIONSHEET +

The diagram represents a sodium atom and a sodium ion

#a% #i% &hich diagram represents the sodium atom(

)1*

#ii% 9i'e reasons for ,our choice

)+*

#iii% Sodium is in group 1 of the periodic table Ho! can ,ou tell this from its electron structure(

)1*

#b% #i% &hat is an ion(

)1*

#ii% :otassium is also in group 1 of the periodic table &hat is the s,mbol for the potassium ion(

4hoose from5

; ; < ; +< ; 3 ; +3

)1*

#c% 9roup 1 elements are stored in oil Suggest the reason for this

)+*

#d% - small piece of potassium is ta6en out of its bottle and cut The surface is sil'er coloured and shin,0

but after a fe! minutes it loo6ed dull and !hite - chemical reaction had ta6en place

#i% &ith !hat had the potassium reacted(

)1*



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#ii% &hat is the name of the substance formed on the outside of potassium(

)1*

#iii% &rite a !ord e=uation for the reaction

)1*

#i'% &rite a balanced s,mbol e=uation for this reaction

)+*

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High Demand Questions QUESTIONSHEET >

7ithium #7i% can be burnt in chlorine #41+% to gi'e lithium chloride

#a% #i% &rite a !ord e=uation for the reaction

)1*

#ii% &rite a balanced s,mbol e=uation for the reaction

)1*#b% #i% &hich group in the periodic table does lithium belong to(

)1*

#ii% Ho! man, electrons are there in its outside shell(

)1*

#iii% Ho! man, electrons are there in the outside shell of the chlorine(

)1*

#c% Use a ?dot and cross@ diagram to explain ho! lithium and chlorine react together Sho! onl, the

electrons in the outer shell )>*

#d% Sodium also reacts !ith chlorine

#i% &ill the reaction be more reacti'e or less reacti'e than !ith lithium(

)1*

#ii% &hat is the common name of the product(

)1*



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High Demand Questions QUESTIONSHEET A

The diagram belo! sho!s the arrangement of particles in a cr,stal of sodium chloride

#a% #i% Each particle has a charge &hat t,pe of particles ha'e a charge(

4hoose from5

atoms, molecules, ions

)1*

#ii% In sodium chloride !hat is the name of the particle !ith the positi'e charge(

)1*

#iii% &hat is the name of the particle !ith the negati'e charge(

)1*

#i'% &hat holds the particles together(

)1*

#b% The table belo! gi'es some information about sodium and chlorine 4omplete the table )B*

#c% Use the information in the table to explain5

#i% !h, sodium chloride has positi'el, and negati'el, charged particles #Use dot and cross diagrams to

help ,our explanation%

)C*

#ii% !h, the formula for sodium chloride is Na41

)1*

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High Demand Questions QUESTIONSHEET C

Sarah is di'ing into a s!imming pool She can smell chlorine

#a% #i% Explain !h, there is chlorine in the s!imming pool

)1*

#ii% Iodine is the same group of the periodic table as chlorine 9i'e a use of iodine

)1*

#b% #i% 4hlorine and iodine are in group of the periodic table &hat name is gi'en to group elements(

)1*

#ii% Is chlorine a metal or non3metal(

)1*

#iii% Is iodine a metal or non3metal(

)1*

#c% #i% The atomic number of chlorine is 1 &hat does this tell ,ou(

)1*

#ii% The electron arrangement of chlorine is +$ Ho! man, electron shells does it ha'e(

)1*

#iii% Iodine has fi'e electron shells Ho! man, electrons are in the outer shell of iodine(

)1*

#i'% The s,mbol for chlorine is 410 iodine is I and sodium Na 4hlorine combines !ith sodium to ma6e

sodium chloride0 Na41 Iodine also reacts !ith sodium &hat !ill be the name and formula of the

compound formed(

)+*

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High Demand Questions QUESTIONSHEET

The s,mbols represent t!o different forms of chlorine atoms

#a% #i% &hat name is gi'en to atoms of the same element that ha'e different mass numbers(

)1*

#ii% &h, do the atoms ha'e different mass numbers(

)1*

#iii% &hat two things does the number 1 tell ,ou about the structure of a chlorine atom(

)+*#i'% 4alculate the number of neutrons in an atom of chlorine3>C

)+*

#b% - sample of chlorine is found to ha'e a mass of >CC Explain !h, it is not a !hole number

)1*

#c% #i% - small amount of sodium !as burnt in samples of chlorine3>C and chlorine3> &hat difference0

if an,0 !ould ,ou expect bet!een the reactions( )1*

#ii% Explain ,our ans!er

)+*

#iii% &ould chlorine3>C and chlorine3> ha'e the same boiling point(

)1*

#i'% 9i'e a reason for ,our ans!er

)1*

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GCSE CHEMISTRY THE PERIODIC TABLE

High Demand Questions QUESTIONSHEET $

The table belo! sho!s the elements on the third period Sample of each of the elements !ere burnt in ox,gen

and the oxides formed !ere tested to see !hether the, !ere acids or bases

#a% #i% Ho! man, electron shells does the third period ha'e(

)1*

#ii% The element !ith atomic number 1" is neon Explain in terms of electron arrangement !h, a ne!

period starts after neon

)+*

#b% #i% &hich three elements in the third period are metals(

)1*

#ii% &hat trend do ,ou notice about metallic properties as ,ou go across the period(

)1*

#c% #i% Ox,gen is in group B &hat does this tell ,ou about the number of electrons in the outside shell(

)1*

#ii% &rite do!n formulae for the oxides of sodium0 magnesium and aluminium

)>*

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2edium Demand Questions QUESTIONSHEET

/arah has balloons filled !ith three different gases The s,mbols for the gases are !ritten on each balloon

She lets go of the balloons The diagram sho!s !hat happens

#a% To !hich group of the periodic table do the gases belong(

)1*#b% #i% :redict !hat !ould happen to a balloon filled !ith 6r,pton

)1*

#ii% Explain the reasons for ,our ans!er

)+*

#c% #i% Dra! the electron structure of helium

)1*

#ii% Explain ho! the electron structure is related to the chemical properties of helium

)+*

#d% #i% Helium is often used to fill balloons 9i'e two reasons !h, this is a good choice

)+*

#ii% Neon0 argon and 6r,pton are used to fill light bulbs 9i'e a reason for this

)+*

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2edium Demand Questions QUESTIONSHEET 1"

Fohn has three bottles containing salts One contains sodium chloride0 one lithium chloride and one potassium

chloride0 but the labels ha'e come off

#a% #i% Sodium0 potassium and lithium all belong to the same group of the periodic table &hat is the group

number(

)1*

#ii% &hat is the name of the group(

)1*

#iii% &hat colour are the three salts(

)1*

#b% Fohn needs to put the correct labels on the bottles He does a flame test Describe exactl, ho! he does

the flame test

)>*

#c% Fohn puts his results in a table 7oo6 at the table and fill in the names of the salts



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2edium Demand Questions QUESTIONSHEET 11

The table belo! gi'es information about some of the elements in group

#a% #i% :ut the three elements in the table in their order of reacti'it,0 !ith the most reacti'e first

)1*

#ii% &hich propert, in the table abo'e indicated the order of reacti'it, for group elements(

)1*

#b% #i% Ho! man, electrons are in the outside shell of a chlorine atom(

)1*

#ii% Does the element chlorine usuall, exist as free atoms0 molecules or ions(

)1*

#iii% Explain ,our ans!er to #ii%

)+*

#c% /luorine is also in group Its atomic number is

#i% Dra! the electron arrangement for fluorine )+*



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#ii% &ould ,ou expect fluorine to be a solid0 li=uid or gas at room temperature(

)1*

#iii% :redict !hat its melting point !ould be

)1*

#d% - sample of bromine is put in a test tube in a !ater bath at B" o4 Suggest !hat !ill happen to it

)1*

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2edium Demand Questions QUESTIONSHEET 1+

-bdul adds some sil'er nitrate #-gNO>% solution to a sodium chloride #Na41% solution He notices a !hite

precipitate He lea'es the test tube in bright sunlight The precipitate !ent dar6

#a% #i% &hat colour is the sodium chloride solution(

)1*

#ii% &hat is meant b, ?precipitate@(

)+*

#iii% &hat is the name of the precipitate made(

)1*

#b% #i% &rite a !ord e=uation for the reaction

)1*

#ii% &hat is the state s,mbol for a solution in !ater(

)1*

#iii% &hat is the state s,mbol for a precipitate(

)1*

#i'% &rite a s,mbol e=uation for the reaction0 including the state s,mbols

)+*



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#c% -bdul adds some sil'er nitrate to three more solutions0 -0 G and 4 He puts the results in a table

:ut a tic6 in the column if there !as a halide present )+*

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2edium Demand Questions QUESTIONSHEET 1>

Gelo! is the first part of the periodic table0 gi'ing the elements !ith their atomic numbers

#a% #i% &hat is the name gi'en to the group bet!een atomic number +1 and >"(

)1*

#ii% -re the, metals or non3metals(

)1*

#iii% &hat do the follo!ing s,mbols stand for(

)>*

#b% Gelo! are some properties of t!o elements

#i% &hich element is from the group bet!een atomic numbers +1 and >"(

)1*

#ii% Using the properties in the table0 suggest !hich elements !ould be most suitable for ma6ing a

6ettle 9i'e a reason for ,our ans!er



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)+*

#iii% Element number ++ is called titanium /rom its position in the periodic table predict three properties

,ou !ould expect it to ha'e :ut a tic6 in the box b, one propert, from each pair in the list belo!

)>*

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4omplete the table

)+*

#c% #i% &hat is the s,mbol for the iron#II% ion(

)1*

#ii% &hat is the s,mbol for the h,droxide ion(

)1*

#iii% &rite a balanced ionic e=uation to sho! the reaction bet!een iron#II% ions and h,droxide ions

)1*

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2edium Demand Questions QUESTIONSHEET 1B

The table belo! sho!s the second and third periods of the periodic table

#a% #i% The first period is not sho!n Ho! man, elements are in the first period(

)1*



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#ii% Ho! man, elements are in the second period(

)1*

#iii% &hat does the period number tell ,ou about the arrangement of electrons in the atom(

)1*

#b% #i% /ind carbon in the table &hich period is it in(

)1*

#ii% &hich group is it in(

)1*

#iii% &hat does the group number tell ,ou about the structure of the carbon atom(

)1*

#c% #i% There are t!o numbers0 B and 1+0 in the box !ith carbon B is the atomic number &hat two things

does the atomic number B tells ,ou about an atom of carbon(

)+*

#ii% &hat is the number 1+ called(

)1*

#iii% &hat does the number 1+ tell ,ou about the structure of an atom of carbon(

)1*

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7o! Demand Questions QUESTIONSHEET 1

Gelo! are the first >B elements in the periodic table !ith their atomic numbers

#a% 9i'e the s,mbol for one example of each of the follo!ing5

#i% a metal

)1*



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#ii% a gas

)1*

#iii% a transition element

)1*

#b% /ind 4l #chlorine% in the table abo'e

#i% &hat is the group number(

)1*

#ii% &hich period is it in(

)1*

#iii% Ho! man, electron shells does it ha'e(

)1*

#i'% Ho! man, electrons are there in its outside shell( )1*

#c% Explain !hat is meant b, ?atomic number@

)1*

#d% #i% &hat name is gi'en to the elements in group "(

)1*

#ii% &hat is the main chemical propert, of group " elements(

)1*#iii% Ho! does their electron arrangement explain this chemical propert,(

)1*

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7o! Demand Questions QUESTIONSHEET 1

Iron and copper are both transition elements The, can both be used to ma6e pans

#a% #i% 9i'e two ph,sical properties of most transition elements that ma6e them suitable for pans



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)+*

#ii% &h, is copper not often used for pans(

)1*

#iii% 4opper is often used for electric !ires 9i'e two properties of copper that ma6e copper a good

choice for this use

)+*

#i'% Iron is used to ma6e cars but not aeroplanes

9i'e one propert, of iron that ma6es it good to use for cars

)1*

9i'e one propert, of iron that ma6es it unsuitable for planes

)1*#b% #i% Iron is used as a catal,st in the Haber process to ma6e ammonia

&hat is the purpose of a catal,st(

)1*

#ii% :latinum is used as a catal,st in catal,tic con'erters in cars

&here in the periodic table !ould ,ou expect to find platinum(

)1*

#c% #i% 4opper and iron both form ions !ith non3metals &hat t,pe of ions do the, form(

)1*#ii% &rite the s,mbols for a copper#II% ion and an iron#III% ion

)+*

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i Gcse Chemistry the Periodic Table

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