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GCSE Chemistry (Edexcel) Quiz am Edexcel (9-1) Topic 6, erstellt von https:// revisechemistry.uk am 23/03/2018.

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Edexcel (9-1) Topic 6

Frage 1 von 6

1

Which of the following elements is a halogen?

Wähle eine der folgenden:

  • iodine

  • sodium

  • carbon

  • iron

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Frage 2 von 6

1

Select all elements that are group 1 metals

Wähle eine oder mehr der folgenden:

  • hydrogen

  • lithium

  • sodium

  • potassium

  • indium

  • gallium

  • helium

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Frage 3 von 6

1

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Group 1 of the periodic table are commonly known as . They are found in the first column of the periodic table because they only have electron on their outer-shell. They are soft, and have generally melting points (for metals).

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Frage 4 von 6

1

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chlorine + hydrogen →
bromine + sodium →
potassium + water → + hydrogen

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Frage 5 von 6

1

become more reactive, the larger the atom. This means the near the top of the group (lithium, sodium etc) are much reactive than those near the bottom of the group (rubidium, caesium etc). This is because the outer negative electron is from the positive nucleus, meaning it attractive force and so can be more easily lost.

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    Alkali metals
    Halogen elements
    metals
    elements
    less
    more
    further away
    closer
    doesn't feel as much
    feels a lot more

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Frage 6 von 6

1

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At room temperature:
Chlorine is a pale green
Bromine is a liquid
Iodine is a purple-black

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