halogens and alkali metals pearson edexcell ıgcse level(9-1)

which element is not in the group 7

• chlorine

• flourine

• astetine

• boron

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chp 12

which one is not gas state at room temperature

• fluorine

• bromine

• chlorine

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chp 12

which one is not correct about the protectıon

• performing in a fume cupboard

• wear glasses

• wear gloves

• use mask

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chp 12

which statements are correct about halides

whwn we go down the group:

• reactivity increase

• intermolecular forces decrease

• less energy supplied

• all of them poisonous gasses

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chp 12

which one is not a alkali metal

• sodıum

• lithium

• caesium

• magnesium

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chp 11

which one is radioactive

• sodıum

• magnesium

• francıum

• rubidium

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chp 11

it is correct ?

group A1 is called alkali metals

• yes

• no

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chp 12

chp 11

when we go down the group(alkali metals):

-atoms get (a)  

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chp 11

when we go down the group(halogens) atoöms get larger so (a)   between the incoming electron and the nucleus decreases.

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chp 12

whe atoms get bigger it becomes more (a)   to gain electron.

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chp 12