level 3 - 5to 6 marks level 2 – 3 to 4 marks level 1 – 1 to 2 marks over time scientists...

Level 3 - 5to 6 marks

Level 2 – 3 to 4 marks


Over time scientists developed the periodic table. Discuss how Dobereiner, Newlands and Mendeleev’s work led to the periodic table as we know it today. 6 marks

Key wordsGroupsPeriodsAtomic numberProtonsReactivityFamiliesAtomic mass

Hints

Discuss Dobereiner and

his periodic table

Discuss Newlands and his periodic

table

Explain how the periodic table is arranged today.

Discuss Mendeleev’s

changes

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QWC - BubblesComplex answer

Extensive key words

Logical order

Excellent spelling, punctuation and

grammar

Detailed answer

Many key words

Clear order

Good spelling, punctuation and

grammar

Simple answer

Few key words

No order

Poor spelling, punctuation and

grammar




Describe the structure of the atom.

6 marks

Key wordsAtomNucleusProtonNeutronElectronPositiveNegativeshells

Hints

Give an overall description of

the atom

Discuss the central nucleus

and the particles found inside it

Describe how electrons are

arranged

Compare charge and mass of all 3

subatomic particles

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Extensive key words

Logical order


grammar

Detailed answer

Many key words

Clear order


grammar

Simple answer

Few key words

No order


grammar




Explain why the Group 1 elements all react in a similar way when reacted with water.

6 marks

Key wordsLithium, SodiumPotassiumCaesiumRubudiumElectronsOuter shellAlkaliHydroxideHydrogenwater

Hints

Name the group 1 metals

Explain what they all have in common

Discuss how the reactivity of the

metals alters down the group

Describe the reaction of a

group 1 metal with water, include an equation

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Extensive key words

Logical order


grammar

Detailed answer

Many key words

Clear order


grammar

Simple answer

Few key words

No order


grammar




Compare the uses of compounds of halogens to the properties of the halogen elements.

6 marks

Key wordsSaltPVCCFCChemical industryMedical drugsDietPlasticsReactiveunreactive

Hints

Identify some halogen

compounds(3)

Discuss their uses

Discuss the difference in

properties between the halogen and their compounds

Discuss their properties.

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Extensive key words

Logical order


grammar

Detailed answer

Many key words

Clear order


grammar

Simple answer

Few key words

No order


grammar




Describe how electrons are arranged in an atom, using examples from group 1 and group 7

6 marks

Key wordsElectronsShells2.8.8Group NumberOuter shellsAttraction foces

Hints

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Extensive key words

Logical order


grammar

Detailed answer

Many key words

Clear order


grammar

Simple answer

Few key words

No order


grammar

Describe how many electrons can fit on each

shell

Explain how the Group number is linked to the

outer shell arrangement of

electrons

Use examples such as Sodium

(Na) and Chlorine (Cl) by drawing shell

diagrams

Explain how many electrons

on the outer shell

determines the ion it becomes




Explain the difference between an atom and an ion. Give an example of a positive ion and a negative ion.

6 marks

Key wordsAtomIonElectronsPositiveNegativeSodiumChlorineLooseGainHints

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Extensive key words

Logical order


grammar

Detailed answer

Many key words

Clear order


grammar

Simple answer

Few key words

No order


grammar

Use examples such as Sodium

(Na) and Chlorine (Cl) by drawing shell

diagrams

Explain how many electrons

on the outer shell

determines the ion it becomes

Describe the structure of an

atom and explain which part is the only one that can

change

Explain how the Group number is type of ion

formed

level 3 - 5to 6 marks level 2 – 3 to 4 marks level 1 – 1 to 2 marks over time scientists...

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